Bank Math

If each side of a rectangle is increased by 20% the increase in the area of a rectangle will be ____ . 

If x = y = 2z and xyz = 256, then x = ?

A bag contains 30 balls numbered 1 to 30. Two balls are drawn at random. What is the probability that the balls drawn contain a number which is multiple of 4 or 6 but not a multiple of both?

A student first reduced a number by 20 percent and then increased it again by 20 percent. If the difference between the two new numbers was 8, then what is the original number?

A box having height 2m, length 10m and width 7m have the top lid open. What is the surface area of the box?

The H.C.F of two numbers is 24. The number which can be their L.C.M is-

A grocer buys some eggs at Tk. 3 each. He finds that 12 of them are broken, but he sells the others at Tk. 4 each and makes a profit of Tk. 96. How many eggs did he buy?

An article costs TK 500 and the marked price is mentioned as Tk. 800. What is the profit % for the seller if he sells and offers a discount of 10% on the marked price?

Rohit is 28th from the left end of a row of 50 students and Shyam is 28th from the right end of the row. How many students are sitting between them?

What is the value of tan40° tan50° tan60°?

Find the multiple of 11 in the following numbers.

Current age of Zamil's father is three times of Zamil. After 16 years from now father's age will be twice of Zamil. What is the current age of Zamil?

How many terms of the arithmetic progression 2, 7, 12,... should be taken so that their sum equals 354?

If m is an even integer and n is an integer (either odd or even), then which of the following will always be even?
i) m² + n² + n        ii) (m - n)(n + 1)           iii) m² - n² + 1

Three coins are tossed. Find the probability of exactly 2 heads -

The value of p for which equation x² + (p – 3)x + p = 0 has real and equal roots is-

A takes 2 hr more than B to walk D km. If A doubles his speed then he can make it in 1hr less than B. How much time does B require for walking D km ?

How many cases do you need if you have to pack 112 pairs of shoes into cases that each hold 28 shoes?

A man travels for 2 hours at 30 miles an hour and he covers 60 miles in the next 3 hours. What is the average speed per hour for the entire trip? 

By selling an article for Tk. 100, a man gains Tk. 15. Then, his gain % is