Bank Math

The length of the rectangular hall is 5 m more than its breadth. The area of the hall is 750 m². The length of the hall is:

A and B can do a piece of work in 9 days, B and C in 12 days, A and C in 18 days. If all of them work together, then how much time will they take to finish the same work?

A woman buys 50 eggs for $6.60. Some cost 12 cents each and the rest 14 cents each. How many eggs has she bought at 14 cents each ?

P sells a product to Q and makes a profit of 25%. Q sells it to R at a loss of 20%. If R buys it for Tk. 140, what price did P pay for it?

How much interest will Tk. 1,000 earn in one year at an annual rate of 8% if interest is compounded every 6 months?

Working alone, pump A can empty a pool in 3 hours. Working alone, pump B can empty the same pool in 2 hours. Working together, how many minutes will it take pump A and pump B to empty the pool?

A woman says, ''if you reverse my own age, the figure represents my husband's age. He is, of course, senior to me and the difference between our ages is one eleventh of our sum. ''What is the age of the woman?

Mr. Khan's salary is Tk. 5000.00 and he gets 10% commission of his salary. If his salary increased by 10%, by what percent his commission will increase?

A boat goes 13 km upstream (against current) in 39 minutes. The speed of stream (current) is 3 km/hr. What is the speed of the boat in still water?

A picnic attracts 240 persons. There are 20 more men than women and 20 more adults than children. How many men are at this picnic?

If the ratio of two numbers is 3 : 4 and their least common multiple is 60, then the numbers are-

If 9 is 3/4 of n, what number is 5/6 of n?

If England is written as 1234526 and France is written as 785291, then Greece is written as_____

A fraction become 1/3 when 1 is subtracted from the numerator and it becomes 1/4 when 8 is added to its denominator. The fraction obtained is-

A dice is rolled twice. What is the probability of getting a sum equal to 9?

In the coordinate plane, line m passes through the origin and has a slope of 3. If points (6, y) and (x, 12) are on line m, then y - x = ?

If a + 2b = 6 and ab = 4 what is 2/a + 1/b?

When the diameter of a circle is trebled, the area is multiplied by how many times?

Ahmed sold a t-shirt for Tk. 810, and gain 8%. How much did he purchase it for?