Bank Math

A and B start a business with initial investment in the ratio 12 : 11 and their annual profits were in the ratio 4 : 1. If A invested the money for 11 months B invested the money for –

A Triangle has a perimeter 13. The two shorter sides have integer lengths equal to x and x + 1. Which of the following could be length of the other side?

The average of 8 numbers is 8. If 4 is subtracted from each of 6 of these numbers, what is the new average?

A square room has a square carpet symmetrically placed in it. This leaves an uncovered area of 9 meter². The area of the whole room is 25 meter². What is the length of the one side of the carpet?

A train passes a platform in 40 sec and a woman standing on the platform in 30 sec. If the speed of the train is 108 km/hr, what is the length of the platform?

If x is the difference if the squares of two consecutive even numbers, which of the following numbers is a divisor of x?

If Arif work alone he will take 20 more hours to complete a task than if he works with Babu to complete the task. If Babu work alone, he will take 5 more hours to complete the task than if he works with Arif to complete the task. What is the ratio of the time taken by Arif to than taken by Babu if each of them works alone to complete the task.

The present worth of a sum due sometime hence is Tk. 576 and the banker's gain is Tk. 16. The true discount is

X's marks are 70, 90, 65, 85 and 75. What marks he must get on the next test to raise her average to 80?

A cement mixture is composed of 3 elements. By weight, 1/3 of the mixture is sand, 3/5 is water and the remaining 12 pounds of the mixture is gravel. What is the weight of the entire mixture in pounds?

The speed of three cars is in the ratio of 2 : 3 : 4. The ratio of the times taken by these cars to travel the same distance is -

A and B start at the same time with speeds of 40 km/hr and 50 km/hr respectively. If in covering the journey A takes 15 minutes longer than B, the total distance of the journey is

If the radius of cylinder is halved and height is doubled, then what will be the curved surface area?

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

After 3 semesters in college, Jim has a 3.0 GPA. What GPA must Jim attain in his fourth semester if he wishes to raise his GPA to a 3.1?

The area of a rectangular field is 52000 sq. meters. This rectangular area has been drawn on a map to the scale 1 cm to 100 m. The length is shown as 3.25 cm on the map. The breadth of the rectangular field in the map is-

A frog is sitting on vertex A of a square ABCD. It starts jumping to the immediately adjacent vertex on either side in random fashion and stops when it reaches point C, in how many ways can it reach point C if it makes exactly 7 jumps?

1/4 of Ram's money is equal to 1/6 of Shyam's money. If both together have Tk. 600 the difference between their amounts is-

A Zoo keeper counted the heads of the animals in a zoo and found it to be 80. When he counted the legs of the animals he found it to be 260. If the zoo had either pigeons or horses, how many horses were there in the zoo?

A ferry can travel twice as fast when empty as when it is full. It travels 20 miles with full load, spends 1 hour for unloading and returns to its original post empty. It took 11 hours to complete the journey. What is the speed of the ferry when it is empty?