If it takes 50 workers 4 hours to dig a hole, how long should it take 30 workers to dig the same hole?
The angles of a triangle are in the ratio of 2 : 3 : 4. The largest angle in the triangle is :
For every novel in the school library there are two science books, for each science book there are seven economice books. Express the ratio of economics books to science books to novels in the school library as a triple ratio.
A company makes a profit of 6% on its first Tk. 1,000 of sales each day and Tk. 55 per thousand on all sales in excess of Tk. 1,000 of that day. How much profit will the company make in a day when sales are Tk. 6,000?
If 40% of all women are voters and 52% of the population are women, what percent of the population are women voters?
If 15 men working independently and at the same rate can manufacture 27 baskets in an hour, how many baskets would 45 men working independently and at the same rate manufacture in 40 minutes?
If an integer Y is subtracted from an integer X and the result is greater than X, then Y must be ---
A man walks 30 minutes at an average speed of 3 miles/hour. He waits 10 minutes for a bus, which bring him back to his starting point at 3:15. If he began his walk at 2:25 the same afternoon, find the average speed of the bus?
Coffee A costs 75 cents per pound. It is mixed with Coffee B, which normally costs 80 cents per pound, to form a mixture that costs 78 cents per pound. If there are 10 pounds of the mix, how many pounds of Coffee A were used in the mix?
Murad bought equal numbers of 20-paisa and 30-paisa stamps. If the total cost of the stamps was Tk. 10.00, What was the total number of stamps bought?
The difference between two positive numbers is 16. If the smaller of these two numbers is 3/5 of the larger, what is the value of the smaller number?
What is the minimum number of apples that must be added to the existing stock of 264 apples so that the total stock can be equally distributed among 6,7 or 8 persons?
Four partners distribute their income amongst themselves in the proportions 1:2:3:4. What percent of the income is received by the first partner?
An employer pays 3 workers X, Y and Z a total of Tk. 610 a week. X is paid 125% of the amount Y is paid and 80% of amount Z is paid. How much does X make a week?
If 2x=7 and 3y=2, then what is 9xy?
What value of x satisfies the equation x-1 = 1-x?
If 2x+7 =12, then what is 4x-7?
If the total surface area of a cube is 24, what is the volume of the cube?
If x/y = 3/4, then what is the value of x+y/y?
If the average of 9 consecutive integers is 0, what is the average of the last 4 of these integers?
If the radius of a circle is decreased by 30 percent, by what percent will the area of the circular region decrease?
In a library system with 6 branches, 60 workers are employed. If no library has fewer than 7 workers and no more than 11, what is the minimum number of workers in any 2 of the branches?
If 4x is 9 greater than the sum of x and 3y, then x is how much greater than y?
If 8 men can do a job in 12 days, what is the percentage change in the number of days required to do the job if 2 men are released?
The number 0.01 is how many times as great as the number (0.0001)2
If x=y=4 and x-y=3, then x+2y is
If 2n=32
Which of the following is a solution to x+x2=1?
A truck driver must complete a 180-mile trip in 4 hours. If he averages 50 miles an hour for the first three hours of his trip, how fast must he travel in the final hour?
15 students took a test that was scored from 0 to 100. If exactly 10 students scored 75 of more on the test, find the lowest possible value for the average of the scores of all 15 students.