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A person has undertaken a construction job. The probabilities are 0.65 that there will be strike, 0.8 that the job will be completed on time if there is no strike, 0.32 that the job will be completed on time. If there is a strike. Determine the probability that the job will be completed on time.
In a company with 48 employees, some part-time and some full-time, exactly (1/3) of the part-time employees and (1/4) of the full-time employees take the subway to work. What is the greatest possible number W of employees who take the subway to work?
In a garments industry, a loom weaves 0.128 metres of cloth every second. Approximately, how many seconds will it take for the loom to weave 25 metre of cloth ?
A student got twice as many sums wrong as he got right. If he attempted 48 sums in all, how many did he solve correctly ?
If a:b=2:8 and b:c=3:4 find a:b:c?
How many times will the digit 4 be written when listing the integers from 1 to 1000?
Find the odd man out 385, 462, 572, 427, 671, 264
A wire in the form of a circle of radius 3.5 m is bent in the form of a rectangule, whose length and breadth are in the ratio of 6 : 5. What is the area of the rectangle?
If x - y =1 and x2+y2=25 , find the value of ab.
A broker invested her own money in the stock market. During the first year, she increased her stock market wealth by 80 percent. In the second year, largely as a result of a slump in the stock market, she suffered a 30 percent decrease in the value of her stock investments. What was the net increase or decrease on her ...
There are cats got together and decided to kill the mice of 999936. Each cat kills equal number of mice and each cat kills more number of mice than cats there were. Then what are the number of cats?
The distance between X&Y is 600km. A person is traveling from X to Y at 60km/hr started at 10AM and another person is traveling from Y to X at 40km/hr and started at same time. Then at what time they meet together.?
Double of Quarter of 3 percent written as a decimal is :
A person travels from P to Q a speed of 60 km/hr and returns by increasing his speed by 20%. What is his average speed for both the trips?
The least number which should be added to 3725 so that the sum is exactly divisible by 5, 6, 4 and 3 is?
A train 360 m long is running at a speed of 45 km / hr. In what time will be pass a bridge 140 m long?
The concentration of spirit in three different vessels A, B and C are 45%, 30% and 10% respectively. If 4 litres from vessel A, 5 litres from vessel B and 6 litres from vessel C are mixed, find the concentration of spirit in the resultant solution.
A water tank has two pipes to fill water in it. One of the pipes fills water at the rate of 100 litres per hour. The tank is filled by the other pipe in 6 hours and by both pipes together in 4.2 hours. What is the capacity of the tank in litres ?
A bowl was filled with 10 ounces of water, and 0.00008 ounce of the water evaporated each day during a 50-day period. What percent of the original amount of water evaporated during this period?
what is rate of interest if principal.amount be 400,simple interest 120 and time 2year.
How many 4-letter words can be formed using the letters of the English alphabet that contain 2 different vowels and 2 different consonants?
a student reached his school late by 20mins by travelling at a speed of 9kmph.if he had travelled at a speed of 12kmph,he would have reached his school 20mins early.what is the distance between house and school?
A 6 litre sol is 30% alcohol .How many litres of pure alcohol must be added to produce a sol that is 50% alcohol ?
Rajesh can finish 1/3 of his home work in one hour. Seema can finish 3/7 of her homework in 70 minutes and Ramya can finish 3/4 of her homework in three and a quarter hours. If all of them start their home work at 12.00 PM and can go to play as soon as they all finish their homework. When can they start to play, if the...
Which of the following is a even number ?
in a certain tournament certain rules are followed: any player is eliminated the moment he losses for the third time (irrespective of how many wins he has), any player can play another player any number of times. If 512 contestants enter the tournament what is the largest number of games that could be played?
The greatest number of four digits which is divisible by 15, 25, 40 and 75 is:
Amul's Ice Cream Shop sells ice cream at a cents a scoop. For an additional b cents, a customer can add 7 toppings to his or her sundae. How much would a sundae with 7 scoops and 7 toppings cost, in terms of a and b?
At 1:00 pm, a truck left city P and headed toward City Q at a constant speed of 50 km/h. One hour later, a car left City Q and headed toward City P along the same road at a constant speed of 40 km/h. If the distance between City P and City Q is 230 km, at what time will the truck and the car meet each other?
A train 450 m long running at 108 kmph crosses a platform in 25 sec. What is the length of the platform?
A set consist of 2m-1 element. What is the number of subsets of this set which contain at most m-1 elements?
A boatman can row 3 km against the stream in 20 minutes and return in 18 minutes. Find the rate of current ?
Ron walks to a viewpoint and returns to the starting point by his car and thus takes a total time of 6 hours 45 minutes. He would have gained 2 hours by driving both ways. How long K would it have taken for him to walk both ways.
Set W includes elements {8, 2, 11, x, 3, y} and has a mean of 7 and a median of 5.5. If x < y, then which of the following is the maximum possible value of x?
A person lent a certain sum of money at 5% per annum at simple interest and in 8 years the interest amounted to $420 less than the sum lent. What was the sum lent?
Departments A, B, and C have 6 employees each, and department D has 20 employees. Departments A, B, C, and D have no employees in common. A task force is to be formed by selecting 1 employee from each of departments A, B, and C and 2 employees from department D. How many different task forces are possible?
An investor invests in a new fund. The fund averages 10% growth annually for the first three years, but it loses 20% of its value in the fourth year. At the end of four years, the value of the fund is approximately what percent of the original amount?
Which of the following is closest to (-2/3)^199？
If a, b, c are consecutive positive integers and a<b<c, which of the following must be true? I. a-c=-2 II. abc is an even integer III. (a+b+c)/3 is an integer
E is the midpoint of AC in right triangle ABC shown above. If the area of ΔABC is 24, what is the area of ΔBED? A. B. C. D. E.
The parameter of a square is double the perimeter of a rectangle. The area of the rectangle is 480 sq cm. Find the area of the square?
What is the area of an equilateral triangle whose one side length is 90?
The length of a rectangular hall is 5m more than its breadth. The area of the hall is 750 m. The length of the hall is
The area of a square is equal to five times the area of a rectangle of dimensions 125 cm * 64 cm. What is the perimeter of the square?
Two cars, A and B, travel along interstate 20 from Atlanta to Dallas. Car A left Atlanta at 10 PM traveling at a constant speed of 60 mph. Car B left the same point in Atlanta 30 minutes later traveling at a constant speed of 80 mph. In how many minutes will Car B overtake Car A if neither car stops at any exit or expe...
In a class of 27 students in an examination in maths 5 students scored 95 marks each, 3 get zero each and the average of the rest was 45. What is the average of the whole class?
Which of the following could be the sides of an obtuse angled triangle? all values are in degree only I. 51, 29, 100 II. 10,110, 60 III.30 ,30 ,120
Two numbers are in the ratio of 5:7. If 25 is subtracted from each number, they are in the ratio of 5:9. What are the two numbers?
The percentage increase in the area of rectangle , if each of its side is increased by 20% is?
In how many different number of ways 3 men and 2 women can sit on a shopa which can accommodate persons?
If 75 percent of a class answered the first question on a certain test correctly, 25 percent answered the second question on the test correctly, and 20 percent answered neither of the questions correctly, what percent answered both correctly?
The perimeter of a triangle is 36 cm and the inradius of the triangle is 2.5 cm. What is the area of the triangle?
A man buys an article for $10. and sells it for $25. Find the gain percent?
A train traveling at 100 kmph overtakes a motorbike traveling at 64 kmph in 80 seconds. What is the length of the train in meters?
The average weight of a class of 20 boys was calculated to be 58.4 kgs and it was later found that one weight was misread as 56 kg instead of 60 kg. What is the correct weight?
The average of 10 numbers is 40.2. Later it is found that two numbers have been wrongly copied. The first is 19 greater than the actual number and the second number added is 13 instead of 31. Find the correct average.
A necklace is made by stringing N individual beads together in the repeating pattern white bead, green bead, red bead, yellow bead, and blue bead. If the necklace design begins with a white bead and ends with a red bead, then N could equal
Three boys are ages 4, 6 and 7 respectively. Three girls are ages 5, 8 and 9, respectively. If two of the boys and two of the girls are randomly selected and the sum of the selected children's ages is w, what is the difference between the probability that w is even and the probability that w is odd?
What is the place value of 4 in the numeral 4259
Two numbers are in the ratio of 3:4. If 12 be subtracted from each, they are in the ratio of 9:8. Find the numbers?
From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there on the committee. In how many ways can it be done?
A cave is going to explode. A family is trapped inside that cave. The only way to get outside is a narrow tunnel. But the tunnel is weak and thus only two people can go at one time. Also, everybody is afraid of going alone. The father takes one minute to go through till the end, the mother takes two, the son takes four...
Find the value of (√1.1)/(√0.81) + (√1.44)/(√0.49) is
Find the sum of prime numbers lying between 58 and 75?
For any integer n greater than 1, #n denotes the product of all the integers from 1 to n, inclusive. How many prime numbers R are there between #6 +2 and #6 +6 , inclusive?
A box measuring 24 inches long by 40 inches wide by 16 inches deep is to be filled entirely with identical cubes. No space is to be left unfilled. What is the smallest number of cubes that can accomplish this objective?
Bob wants to run a mile in the same time as his sister. If Bob’s time for a mile is currently 10 minutes 40 seconds and his sister’s time is currently 9 minutes 17 seconds, by what percent does Bob need to improve his time in order run a mile in the same time as his sister?
Ram, Raj started a business in partnership, which Ram invested Rs.8000/- for 1 year, Raj invested Rs.16000/- for 2 years. At the end of the profit received by them is Rs.4000/-. What is Ram’s share?
If N = 2^0.15 and N^b = 1, b must equal
The distance light travels in one year is approximately 5,870,000,000,000 miles. The distance light travels in 100 years is:
What is the tens digit of 7^1033?
A bag contains 10 red jellybeans and 10 blue jellybeans. If 3 jellybeans are removed one at a time, at random and are not replaced, what is the probability Q that all 3 jellybeans removed from the bag are blue?
Find the value of y from (12)^3 x 6^4 ÷ 432 = y?
If (x + 1) times (2x + 3) is an odd integer, then x must be:
Water boils at 212°F or 100°C and ice melts at 32°F or 0°C . If the temperature of a pot of water is 55°C, what is the temperature of the pot of water in °F?
A, B and C rent a pasture. If A puts 10 oxen for 7 months, B puts 12 oxen for 5 months and C puts 15 oxen for 3 months for grazing and the rent of the pasture is Rs. 175, then how much amount should C pay as his share of rent?
The sum of five numbers is 200. The average of the first two numbers is 20 and the third number is 50. Find the average of the two numbers?
What approximate value should come in place of the question mark (?) in the following equation? 159% of 6531.8 + 5.5 × 1015.2 = ? + 5964.9
A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?
One boys picked up 30 mangoes .In how many ways can they divide them if all mangoes be identical?
1370 , 1320 , 1070 , -180, -6430, X
A square is drawn inside a right-angled triangle with the two perpendicular sides as 12 cm and 8 cm. what is the side of the largest possible square that can be drawn?
7, 10.5, 15.75, 23.63, 35.43, (...)
If E is the product of all positive integers less than 31, than what is the greatest integer k for which E/18^k is an integer?
A five digit number is to be formed using each of the digits 1, 2, 3, 4 and 5 ONLY ONCE. How many numbers can be formed when 2 and 3 are not together ?
A water tank is two-fifth full.Pipe A can fill a tank in 10 minutes and pipe B can empty it in 6 minutes.If both the pipes are open,how long will it take to empty or fill the tank completely?
3 men and 8 women complete a task in same time as 6 men and 2 women do. How much fraction of work will be finished in same time if 4 men and 2 women will do that task.
Jessica can text 85 words per minute, while Maurice can text 55 words per minute. An abridged English translation of Tolstoy’s War and Peace contains 410,400 words. Working together, how many days will it take Jessica and Maurice to text the entire abridged translation of War and Peace?
A case of 12 rolls of paper towels sells for $9. The cost of one roll sold individually is $1.What is the percent W of savings per roll for the 12-roll package over the cost of 12 rolls purchased individually?
In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?
The speed of a train is 70 kmph. What is the distance covered by it in 10 minutes?
pipes P and Q would fill a cistern 18 and 24 minutes respectively. Both pipes being opened, find when the first pipe must be turned off so that the cistern may be just filled in 12 minutes?
It takes 6 beavers 10 hours to build a certain dam, working at a uniform rate. If three beavers start to build the same dam at 8:00 AM, and one beaver per hour is added beginning at 6:00 PM, at what time will the dam be complete?
For a performance, a few dancers are arranged in a row. Nancy is standing in the middle of the row at the 6th position. Can you find out the total number of girls in that row?
A train 250 m long passed a pole in 25 sec. How long will it take to pass a platform 700 m long?
A trader bought a car at 20% discount on its original price. He sold it at a 40% increase on the price he bought it. What percent of profit did he make on the original price?
In a classroom teacher has 20 boxes, they issues 8 boxes gifted to their students. Then how many boxes they had?
Two quarts containing 5⁄6 water and 1/6 formula are mixed with three quarts containing 7⁄10 water and 2⁄10 formula. Approximately what percent of the combined five-quart mixture is water?
The sum of the first n positive perfect squares, where n is a positive integer, is given by the formula n^3/3 + c*n^2 + n/6, where c is a constant. What is the sum of the first 16 positive perfect squares?
What is the least value of x. So that 23x57 is divisible by 3.