Bank Math

A rectangular block 6 cm by 12 cm by 15 cm is cut up into an exact number of equal cubes. Find the least possible number of cubes.

If Lalon loses 8 pounds, he will weigh twice as much as his sister. Together they now weigh 278 pounds. What is Lalon’s present weight, in pounds?

The distance from the point P to two vertices A and B of an equilateral triangle are ।PA।= 2 and ।PB।= 3. What is the greatest possible value of ।PC। = ?

Of the following list of numbers, which has the greatest standard deviation?

A man takes 3 hours 45 minutes to row a boat 22.5 km downstream of a river and 2 hours 30 minutes to cover a distance of 10 km upstream . Find the speed of the river current in km /hr.

If a+b = 8 and ab = 15, what is the value of a²+b²?

What is the slope of the line perpendicular to the line y = -5x + 9?

The average runs of a cricket player of 10 innings was 32. How many runs must he make in his next innings to increase his average of runs by 4?

If the difference between the circumference and diameter of a circle is 60 cm, then the radius of the circle is

A tank is 25 m long, 12 m wide and 6 m deep. The core of plastering its walls and bottom at 75 paisa per m² is:

What is the volume of a cylinder with radius 6 and height of 7?

A man buys doughnuts at the rate of Tk. 35 per 100 pieces and sells them at Tk. 7.20 per dozen. If the profit is Tk. 30, how many doughnuts did he buy?

The interest charged on a loan is p dollars per $1,000 for the first month and q dollars per $1000 for each month after the first month. How much interest will be charged during the first three months on a loan of $10,000?

The product of two different irrational numbers is always -

The value of 'A' varies in verse in inverse proportion as the square of 'B'.If the value of 'A' is equal to 40 when 'B' is equal to 12. What would be the value of 'A' when 'B' is equal to 24?

3 pumps working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?

The base of an isosceles triangle is 6cm and one of the equal sides is 12cm. Find the radius of the circle through the vertices of the triangle?

The simple interest on a sum of money at 8% per annum for 6 years is half the sum. the sum is-

A bag contains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The probability that all of them are red, is

What is the area of the largest sphere that can be placed inside a cube of volume 216 cm³?