The length of a rectangle is twice than that of its breadth. If the length of the rectangle is increased by 10%, while its breadth is decreased by 10% what is the percentage change in the perimeter ?

A can complete a project in 20 days and B can complete the same project in 30 days. A and B start working on t...

Halim purchased brand A pen for Taka 200 each and brand B per for Taka 100 each. If he purchased a total of 8...

Ahad buys 80kg sugar at Taka 40 per kg and 40 kg rice at Taka 50 per kg. At what price approximately in Taka p...

Find the ratio of purchase price to sell price if there is loss of 12.5% ?

Find the area of a right angled triangle whose hypotenuse is 10 cm and base 8 m.

A is two years older than B who is twice as old as C. If the total age of A,B and C is 27, then how old is B ?