Bank Math

Successive discount of 20% and 15% are equal to a single discount of-

Which of the following is greater than 1?

For which of the following values of x is (x + 78)/x an integer?

If 3x + (3/x) = 5, then x³ + (1/x³) = ?

In a city, the fare of a cab consists of fixed charge plus the charge for the distance covered. For a journey of 8 km, the charge paid is Tk. 300 and for 15 km, the charge paid is Tk. 335. Determine the charge a person will have to pay for 24 km?

If the radius of a sphere is increased by 10%, how much will the surface area be increased in percentage?

A car go 33 miles per gallon using gasoline that cost $2.95 per gallon. Approximately what was the cost, in dollars, of the gasoline used in driving the car 350 miles ?

Hamed's average on 4 tests is 80. Assuming he can earn no more than 100 on any test, what is the least he can earn on his 5^th test and still have a chance for an 85 average after seven tests?

In a certain town, the ratio of the number of rented residences to the number of owned residences is 7 : 4. Those are the only two kinds of residences in this town. If there are 150 more rented than owned residences in the town?

Which one is the smallest?

In a group of 52 persons, 16 drink tea but not coffee, and 33 drink tea. How many drink coffee but not tea?

A train of length 150m takes 10 seconds to cross another train 100m long coming from the opposite direction. If the speed of first train is 30 km/hr, what is the speed of second train ?

A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in:

Out of 10 persons working on a project, 4 are graduated. If 3 are selected, what is the probability that there is at least one graduate among them?

Three dice are thrown together. Find the probability of getting a total of at least 6?

Two-fifth of one-third of three-seventh of a number is 15. What is 40 percent of that number?

The LCM and HCF of two numbers are 90 and 15 respectively. If one number is 45, the other number is -

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 circular garden with a diameter of 20 meters is surrounded by a walkway of width 1 meter. What is the area of the walkway?