In how many years amounts of money will treple itself at a simple rate of interest is 20% per annum?

A woman says, "If you reverse the digits my age, the figures represent my husband's age. He is senior to me an...

A is 3 years older than C. B and D are twins. How older is c than D?

In a garden , there are 10 rows and 12 columns of trees . The distance between any two trees is 2 m and a dist...

In a cricket match , five batsmen A, B, C, D and E scored an average of 36 runs. D scored 5 more than E, E sco...

At a dinner party , every two guests shared a bowl of rice between them , every three guests shared a bowl of...

There are deer and peacocks in a zoo. The total number of their heads is 80 and the total number of their legs...