Bank Math

What is the perimeter (পরিসীমা) of a square, if its area is 400 sq. m.

In the figure above, if the perimeter of Δvzy is 17, what is the area of square region vwxy?

After receiving a 25% discount, Sue paid $180 for a lawnmower. What is the original price of the lawnmower before the discount?

If a sum of taka invested amount to BDT 460 in 3 years and amounts to BDT 500 in 5 years then what is the invested sum in BDT?

Which of the following has the smallest value?

A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?

(289)^0.17 × (17)^0.16 = ?

Given that 24 carat gold is pure gold, 18 carat gold is 3/4th of pure gold and 20 carat gold is 5/6th of pure gold, the ratio of the pure gold in 18 carat gold to the pure gold in 20 carat gold is

Arif and Babu worked together to paint a house. Arif worked for 1 hour 45 minutes and Babu worked for 45 minutes. Babu's hourly rate is double the rate of Arif's. If the two together earned Tk 71.50, what is hourly rate of Arif in Taka?

The perimeter of a circle measures 16πcm, what is the area of the circle in sq.cm?

If the length of a side of a regular pentagon is 4 cm, the area of the pentagon is approximately-

If one number exceeds another number by 14 and the larger number is 3/2 times the smaller number, then the smaller number is -

A person make a profit of 10% on 25% of the quantity and a loss of 20% on the rest of the quantity. What is the gain or loss in percentage on the whole?

A machine is sold at a profit of 10%. Had it been sold for Tk. 40 less, there would have been a loss of 10%. What was the cost price?

A person's present age is two-fifth of the age of his mother. After 8 years, he will be one half of the age of his mother. What is the present age of the mother?

r > s > 0; Quantity A = (rs)/r and Quantity B = (rs)/s

A man takes twice as long to row a distance against the stream as to row the same distance in favor of the stream. The ratio of the speed of the boat (in still water) and the stream is: 

The perimeter of a rectangle is 104 inches. The width is 6 inches less than 3 times the length. Find the width of the rectangle.

The cost price of an article is Tk 7840. What should be the selling price of the article so that there is a profit of 7%?

The average weight of 3 friends is 33 kg. None of the friends weights less than 31 kg. What can be the maximum weight of any three friends?