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The average of six number is 3.99. The average of two of them is 3.4, while the average of the other two is 3.85. what is the average of the remaining two number ?
50 men can complete a work in 65 days.Five days after started the work, 20 men left the group. In how many days can the remaining work be completed?
In how many ways can an answer key for a quiz be written if the quiz contains 3 true-false questions followed by 3 multiple-choice questions with 4 answer choices each, if the correct answers to all true-false questions cannot be the same?
How many of the following numbers are divisible by 132 ? 264, 396, 462, 792, 968, 2178, 5184, 6336
Merry and Mich play a card game. In the beginning of the game they have an equal number of cards. Each player, at her turn, gives the other a third of her cards. Mich plays first, giving Merry a third of her cards. Merry plays next, and Mich follows. Then the game ends. Merry ended up with 14 more cards than Mich. How many cards did each player have originally?
On dividing 172 by a number, the quotient is 10 and the remainder is 2. Find the divisor.
10^190 - 10^9 = Which of the following best approximates the value of the expression above?
If 5 cars park in 5 parking place.there are 3 red colour car,1 blue and 1 green then how many ways we can arrange the cars differently
A can contains a mixture of two liquids A and B in the ratio 7 : 5. When 9 litres of mixture are drawn off and the can is filled with B, the ratio of A and B becomes 7 : 9. How many litres of liquid A was contained by the can initially?
40 people attend a party. 11 men are single and the rest are there with their wives. There are no children in the party. In all 22 women are present. Then the number of married men at the party is ?
The length of a rectangle is 2 cm more than the width of the rectangle. The perimeter of the rectangle is 20 cm. Find the length and the width of the rectangle.
If f(x)= 5x^2- 2x+6 and g(y)= 3y-7, then g(f(x))
Manoj borrowed Rs.3450 from Anwar at 6% p.a. simple interest for three years. He then added some more money to the borrowed sum and lent it to Ramu for the same time at 9% p.a. simple interest. If Manoj gains Rs.824.85 by way of interest on the borrowed sum as well as his own amount from the whole transaction, then what is the sum lent by him to Ramu?
The average age of a group of person going for picnic is 16 years. Twenty new persons with an average age of 15 years join the group on the spot due to which their average becomes 15.5 years. Find the number of persons initially going for picnic.
I spend 40 hours a week (5 days) at work and like to organize my time so that I spend an equal number of hours on the two tasks I currently have. Currently, I am spending 5 hours a day on Task 1 and 3 on Task 2. How many hours a week less do I need to spend on Task 1 in order to evenly distribute my time?
The total of the ages of Mahesh, Suresh, Ramesh is 129 years. Ten years ago, the ratio of their ages was 2:3:4. What is the present age of Mahesh?
If the radius of a cylinder is doubled and height 5 times, what is the new volume of the cylinder divided by the old one?
The price of a T.V. set worth Rs. 40000 is to be paid in 20 installments of Rs. 1000 each. If the rate of interest be 6% per annum, and the first installment be paid at the time of purchase, then the value of the last installment covering the interest as well will be?
How many four-digit numbers are there such that all four digits are different and the first digit is not zero?
The radius of a wheel is 16.8 cm. What is the distance covered by the wheel in making 300 resolutions?
A train speeds past a pole in 15 seconds and a platform 120 meters long in 25 seconds. What is the length of the train (in meters)?
A can be divided by 11 with no remainder. Which of the following expressions could be divided by 11 leaving a remainder of 1?
On a certain day, orangeade was made by mixing a certain amount of orange juice with an equal amount of water. On the next day, orangeade was made by mixing the same amount of orange juice with twice the amount of water. On both days, all the orangeade that was made was sold. If the revenue from selling the orangeade was the same for both days and if the orangeade was sold at $0.40 per glass on the first day, what was the price per glass on the second day?
Here is an ancient problem from Bhaskaracharya's Lilavati: A beautiful maiden, with beaming eyes, asks me which is the number that. multipied by 3 then increased by thre-fourths of the product. divided by 7 diminished by 52, the square root found,addition of 8, division by 10 gives the number 2? Well, it sounds complicated, doesn't it? No, not if you know how to go about it.
The banker's gain on a sum due 6 years hence at 12% per annum is Rs. 612. What is the banker's discount?
Two employees X and Y are paid a total of Rs. 500 per week by their employer. If X is paid 120 percent of the sum paid to Y, how much is Y paid per week?
800 is increased by 110%. Find the final number.
What is the sixth digit to the right of the decimal point, in the decimal expansion of (3/10)^6?
If Rs.7500 are borrowed at C.I at the rate of 4% per annum, then after 2 years the amount to be paid is?
A can do a work in 15 days and B in 20 days. If they work on it together, then the number of days the whole work can be finished is:
P, Q and R have $9000 among themselves. R has two-thirds of the total amount with P and Q. Find the amount with R?
Ten participants are participating in a competition. In how many ways can the first three prizes be won?
Awordis defined as a sequence of three dots arranged in a row. Each dot is colored one of the three colours. How many distinct words can be formed?
Amy's sells kale at x dollar per pound for the first 20 pounds and .8x for every subsequent pound. Lucia's price is x per pound for the first 14 pounds and .9x for subsequent pounds. What is the minimum number of pounds over 20 for which Amy's becomes an equal or better deal?
Country C imposes a two-tiered tax on imported cars: the first tier imposes a tax of 12% of the car's price up to a certain price level. If the car's price is higher than the first tier's level, the tax on the portion of the price that exceeds this value is 8%. If Ron imported a $14,000 imported car and ended up paying $1440 in taxes, what is the first tier's price level?
A circle circumscribes three unit circles that touch each other. What is the area of the larger circle? Note that p is the ratio of the circumference to the diameter of a circle ( 3.14159265).
Assume all CDs are equal in time. If 21 CDs have X hours of music, how many minutes will Y CDs have?
a survey of n people in the town of badaville found that 50% of them prefer brand A.another survey of 100 people in the town of Chotaville found that 60% prefer brand A.In total 55% of all the people surveyed prefer brand A.What is the total number of people surveyed?
Which of the following is closest in value to (9^12)-(9^2)?
A company pays 12.5% dividend to its investors. If an investor buys Rs.60 shares and gets 25% on investment, at what price did the investor buy the shares?
A train passes a platform in 36 seconds. The same train passes a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, The length of the platform is
Can you find the missing number in the sequence given below? 11 15 19 12 16 ? 13 17 21 14 18 22
If a population of women in a town is 50% of men . What is the population of men as a % of population of women ?
A pipe X is 30 meters and 45% longer than another pipe Y. find the length of the pipe Y.
The population of a town increased from 1,75,000 to 2,62,500 in a decade. The average percent increase of population per year is:
If population of certain city increases at the rate of 5%. If population in 1981 was 324135, then population in 1978 was?
The sum of the non-prime numbers between 30 and 40, non-inclusive, is
How many digits will be there to the right of the decimal point in the product of 89.635 and .02218?
A dishonest grocer professes to sell pure butter at cost price, but he mixes it with adulterated fat and thereby gains 45%. Find the percentage of adulterated fat in the mixture assuming that adulterated fat is freely available?
John bought 9.25m of cloth for $434.75. Find the cost price per metre.
Two MBA admissions committees are to be formed randomly from 6 second year MBAs with 3 members each. What is the probability V that Jane will be on the same committee as Albert?
All the water in container A which was filled to its brim was poured into two containers B and C. The quantity of water in container B was 62.5% less than the capacity of container A. If 152 liters was now transferred from C to B, then both the containers would have equal quantities of water. What was the initial quantity of water in container A?
Evaluate: 17 + sqrt(- 7 + 10×6÷5) =?
A starts a business with Rs.40,000. After 2 months, B joined him with Rs.60,000. C joined them after some more time with Rs.1,20,000. At the end of the year, out of a total profit of Rs.3,75,000, C gets Rs.1,50,000 as his share. How many months after B joined the business, did C join?
If air is called green , green is called blue, blue is called sky, sky is called yellow, yellow is called water and water is called pink, then what is the color of clear sky ?
A 25% stock yielding 20% is quoted at:
If a, b, and c are consecutive positive integers and a < b < c, which of the following must be true? I. c - a = 2 II. abc is an even integer. III. (a + b + c)/3 is an decimal.
A table is bought for Rs.200/- and sold at Rs.150/- find gain or loss percentage
In Plutarch Enterprises, 60% of the employees are marketers, 30% are engineers, and the rest are managers. Marketers make an average salary of $50,000 a year, and engineers make an average of $80,000. What is the average salary for managers if the average for all employees is also $80,000?
What will come in place of the x in the following Number series? 18, X, 30, 46 ,78, 142
Three pipes, A, B, & C are attached to a tank. A & B can fill it in 20 & 30 minutes respectively while C can empty it in 15 minutes. If A, B & C are kept open successively for 1 minute each, how soon will the tank be filled?
If 4 consecutive letters are selected at random from the English alphabet, then the probability that one of the letters is a vowel is ?
Six years hence,a fathers age will be three times his son's age and three years ago the fathers age is nine times as old as his son. the fathers present age is
A taxi company charges $2.5 for the first quarter of a mile and fifteen cents for each additional quarter of a mile. What is the maximum distance someone could travel with $4.90?
The value of x + x(xx) when x = 3 is:
How much time will it take for an amount of 900 to yield 81 as interest at 4.5% per annum of simple interest?
Sam earns $6.00 per hour for the first 60 hours he works per week, and twice this rate for overtime. If Michael earned $358 last week, how many hours did he work?
Find the cost of fencing around a circular field of diameter 28 m at the rate of Rs.1.50 a meter?
A watch was sold at a loss of 10%. If it was sold for Rs.280 more, there would have been a gain of 4%. What is the cost price?
In a friendship gang Andrew has 8 gang, in how many ways can he invite one or more of the gang to his house?
23, 29, 31, 37, 41, 43, 47, 53, 59, (...)
1.8 men and 14 women are working together in a field. After working for 3 days, 5 men and 8 women leave the work. How many more days will be required to complete the work? I.19 men and 12 women together can complete the work in 18 days. II.16 men can complete two-third of the work in 16 days. III.In 1 day, the work done by three men in equal to the work done by four women.
If Rs.10 be allowed as true discount on a bill of Rs.110 due at the end of a certain time,then the discount allowed on the same sum due at the end of double the time is :
find highest power of 2 in 1!+2!+3!+4!...........+600!
M is the sum of the reciprocals of the consecutive integers from 401 to 500, inclusive. Which of the following is true?
8 identical machines, working alone and at their constant rates, take 6 hours to complete a job lot. How long would it take for 2 such machines to perform the same job?
Working at constant rate, pump X pumped out half of the water in a flooded basement in 6 hours. The pump Y was started and the two pumps, working independently at their respective constant rates, pumped out rest of the water in 3 hours. How many hours would it have taken pump Y , operating alone at its own constant rate, to pump out all of the water that was pumped out of the basement?
Look at this series: 7, 10, 8, 11, 9, 12, ... What number should come next?
Tickets numbered from 1 to 20 are mixed and then a ticket is selected randomly. What is the probability that the selected ticket bearsa number which is a multiple of 3?
A can do a work in 8 days. B can do the same work in 24 days. If both A & B are working together in how many days they will finish the work?
Ten students in a computer skills company can touch-type and the other 15 can use a particular word processing program. If 13 of the students can neither use the program nor touch-type, then how many students are in the class?
A certain furniture can be repaired for $15.50 and will last for 1 year. A same kind of furniture can be purchased new for $40.00 and will last for 2 years. The average cost per year of the new shoes is what percent greater than the cost of repairing the used shoes?
What is the tens digit of 6^10?
The sum of the mean, the median, and the range of the set {5,6,7} equals which one of the following values?
The food in a camp lasts for 20 men for 40 days. If ten more men join, the food will last for how many days ?
Which of the following CANNOT be the least common multiple of two positive integers x and y
In a sports club with 42 members, 20 play badminton and 23 play tennis and 6 do not play either. How many members play both badminton and tennis?
Tap 'A' can fill the tank completely in 6 hrs while tap 'B' can empty it by 12 hrs. By mistake, the person forgot to close the tap 'B', As a result, both the taps, remained open. After 3 hrs, the person realized the mistake and immediately closed the tap 'B'. In how much time now onwards, would the tank be full?
The probability that B can shoot a target 3 out of 3 times is 0.25. What is the probability that the target will be missed by B immediately after such two shots?
A train passes a station platform in 18 seconds and a man standing on the platform in 12 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?
Of two numbers, 4 times the smaller one is less then 3 times the 1arger one by 5. If the sum of the numbers is larger than 6 times their difference by 6, find the two numbers.
If the height of a cone is increased by 140% then its volume is increased by?
How many times do the hands of a clock coincide in a day?
The distance between Delhi and Mathura is 125 kms. A starts from Delhi with a speed of 25 kmph at 9 a.m. for Mathura and B starts from Mathura with a speed of 35 kmph at 10 a.m. from Delhi. When will they meet?
A recipe requires 2 1/2 (mixed number) cups of flour 2 3/4 (mixed number) cups of sugar and 1 1/3 (mixed number) cups of milk to make one cake. Victor has 15 cups if flour, 16 cups of sugar and 8 cups of milk. What is the greatest number of cakes john can make using this recipe?
Find the 10th term of an arithmetic progression whose first term is 8 and the common difference is 2.
Two vessels P and Q contain 62.5% and 87.5% of alcohol respectively. If 2 litres from vessel P is mixed with 4 litres from vessel Q, the ratio of alcohol and water in the resulting mixture is?
A container holds 4 quarts of alcohol and 4 quarts of water. How many quarts of water must be added to the container to create a mixture that is 3 parts alcohol to 5 parts water by volume?
In a class of 40 students, 2 students did not borrow any books from the library, 12 students each borrowed 1 book, 14 students each borrowed 2 books, and the rest borrowed at least 3 books. If the average number of books per student was 2, what is the maximum number of books any single student could have borrowed?
Nona is one-third as old as her mother. Five years ago, she was only one-fifth of the age of her mother. How old is Nona now?