Bank Math

Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes?

Karim Traveled 60 miles from Dhaka to Gazipur at a certain speed. If his speed per hour were 2 miles faster, he would need 1 hour less to reach Gazipur. What was his initial speed?

If 2^x + 2^y = 2²², what is the value of x + y?

If 0 < x ≤ 1, then which one of the following is the maximum value of (x - 1)² + x ?

A train 108 m long moving at a speed of 50 km/hr crosses a train 112 m long coming from opposite direction in 6 seconds. The speed of the second train is _____

Which of the following fractions is the largest?

The ratio of boys and girls in a class is 4:5. If 10% of the boys and 20%of the girls failed In an examination, what percentage of students passed in the exam?

What would be the measure of the perimeter of a square whose area is equal to 256 square cm?

A, B, C subscribe Tk. 50,000 for a business. A subscribes Tk. 4,000 more than B and B Tk. 5,000 more than C. Out of a total profit of Tk. 35,000 A receives 

The tax on a commodity is diminished by 10% and its consumption increases by 10%. Find the effects on revenue.

A sum of Tk. 312 was divided among 100 boys and girls in such a way that each boys gets Tk. 3.6 and each girl Tk. 2.4. The number of girls is :

In a town, 64 percent of the population is employed, and 48 percent of the population is employed males. What percentage of the employed people in that town is female?

How much is 80% of 40 greater than 4/5 of 25?

Two whole numbers whose sum is 64, cannot be in the ratio:

How many ways the letters of the word 'BANKS' can be arranged?

If 5(3a - 7) = 20, then what is the value of (3a - 8)?

The simple interest received on a sum of money at the end of 10 years is two times of the principal. At the same rate of interest, what would be the ratio of principal and compound interest received at the end of two years?

The area of a rectangle that has length = 2a²b and breadth = 3ab² is:

Karim can do a job in 15 minutes and his brother takes twice as long to do the same job. If they work together, how long it takes to complete the job?

Jim is a car salesman who gets a base monthly salary and a commission for each car he sells. Jim's monthly earnings are given by the function f(x) = c(4+ x), where x represents the number of cars he sold for the month. If Jim sells 6 cars in a month he earns $2,000. How much is Jim's base salary ?