The simple interest at 5% per annum for 5 years will be Rs. 5 on a principal of

3 years ago the average age of a family of 5 members was 17 years. After A baby born, the average age of the family is the same today. The present age of the baby is 

Solution of (x-2/x+2)2 +3 = (x-2/x+2); x ≠ -2 is

Find the missing term

MK : 169/121 : : JH : ?

The relation between velocity (V), frequency (n) and wavelength (λ) of a wave is given by

A hollow sphere in which a circus motorcyclist performs his stunts, has an inner radius of 7 m. Find the area available to the motorcyclist for riding. (Take Π= 22/7)