Bank Math

If the ratio of the areas of 2 squares is 2 : 1, then the ratio of the perimeters of the squares is

A pump remover's water at a rate of 6 gallons per minute. How many hours will it take to remove 1800 gallons?

If p and q are positive integers with pq = 36, then p/q cannot be.

A student obtained 60, 75 and 85 marks respectively in 3 monthly examinations in physics and 95 marks in in the final examination. The 3 monthly examinations are of equal weithtage whereas the final examination is weighted twice as much as monthly examination. what is his average mark in physics?

If x and y are negative integers and x - y = 1, what is the least possible value for xy?

If (16)^{2x + 3} = (4)^{3x + 6} then x =?

Find the least number of five digits which when divided by 40, 60 and 75, leave remainders 31, 51 and 66 respectively.

Half the people on a bus get off at each stop after the first and no one gets on after the first stop. If only one person gets off at stop number 7, how many people got on at the first stop?

A jar contains white, red and green marbles in the ratios 2 : 3 : 5. Six more green marbles are added to the jars, and then the ratio becomes 2 : 3 : 7. How many white marbles are three in the jar?

A lent Tk. 5,000 to B for 2 years and Tk. 3,000 to C for 4 years on simple interest at the same rate of interest and received Tk. 2,200 in all from both of them as interest. The rate of interest per annum is: 

Out of two numbers, 4 times the smaller one is less than 3 times the larger one by 5. If the sum of the numbers is larger than 6 times their differences by 6, find the two numbers.

If 3^{(n + 4)} - 3^{(n + 2)} = 8. What is the value of n?

Which of the following is the lowest positive integer that is divisible by 8, 9, 10, 11 and 12?

A boat takes 19 hours to travel downstream from point A to point B and coming back to a point C midway between A and B. If the speed of the stream is 4 km/hr and the speed of the boat in still water is 14 km/her, what is the distance between A and B?

A train 240m long passes a pole in 24 seconds. How long will it take to pass a platform 650m long?

In triangle ABC, AB = AC and ∠C = 30°. Find the measure of ∠A.

If the average (arithmetic mean) of x and y is 60 and the average (arithmetic mean) of y and z is 80. What is the value of (z - x)?

A monkey climbs a 60m high pole. In first minute he climbs 6m and slips down 3m in the next minute. How much time is required by it to reach the top? 

If y/x = 3/7and x+2y = 13 then y is -

Courier charges for packages to a certain destination are Tk. 65 for the first 250 grams and Tk 10 for each additional 100 grams or part thereof. What could be the weight in grams of a package for which the charge is Tk. 155?