Bank Math

The volume of a cuboid with length, breadth and height as 5x, 3x² and 7x⁴ respectively is:

Painter A can paint a house in 16 days, and painter B can do the same work in 20 days. With the help of painter C, they paint the house in 8 days only. Then, Painter C alone can do this task in -

A number consist of two digits, the sum of the digits is 10. If 72 is subtracted from the number, the digits are interchanged. Find the number.

A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number?

Questions (21-30 ) : Read the following questions carefully and choose the right answer.
21. Alam sold two vehicles for Tk 46000 each. If he gained 10% on the first and lost 10% on another, then what is his percentage profit or loss in this transaction?

For many two numbers m, n ; (m + n) : (m - n) : mn = 7 : 1 : 60. Find the value of 1/m : 1/n 

A restaurant makes 20% profit after selling a set menu at a discount of 20%. What is the percentage increase of the marked price?

The ratios of incomes of A and B is 5:4 and the ratio of their expenditures is 3:2. If at the end of the year each save tk 1600,then the income of A is:

The difference between the present ages of A and D is 14 years. Seven years ago, the ratio of their ages was 5 : 7 respectively. What is D's present age?

40 is subtracted from 60% of a number, the result is 50. Find the number?

The length of rectangle ABCD is (6/5)^th of its breadth. Its perimeter is 132. What is its area?

Two men P and Q start from a place walking at 5 km/hr and 6.5 km/hr, respectively. What is the time they will take to be 92 km apart, if they walk in opposite directions?

The triangular base of a prism is a right triangle of sides a and b = 2a. The height h of the prism is equal to 10 mm and its volume is equal to 40 mm³, what will be the lengths of the sides a and b of the triangle?

Which of the following fractions has the smallest value?

If x³ = 125, then x² + x = ?

A worker union contract specifies a 6% salary increase plus a Tk. 450 bonus for each worker. For a worker, this is equivalent to 8% salary increase. What was this worker's salary before the new contract?

If 12 men work on a particular task. It takes them 24 days to complete it. On the other hand 12 women can complete the same task in 12 days. How many days would it take if the 12 man and 12 women complete with each other to finish the same task?

In a class, the ratio of the number of boys to girls is 6 : 3. What percent of the members of the club are girls?

Consider that w + x = - 4, x + y = 25 and y + w = 15. Then the average of w, x, y is -

A man could buy a certain number of notebooks for Tk. 300. If each notebook cost is Tk. 5 more, he could have bought 10 notebooks less for the same amount. Find the price of each notebook?