The three-fifth of a number is 40 more than the 40 percent of the same number. The number is :

103²-97²

An amount is divided among P,O,R in the ratio 2:5:7 if P’s share is Rs 3,000 then the diference between the shares of Q and R is :

The product of two numbers is 864 and their H.C.F is 12. Their I.C.M. is :

0.00003 / 0.11=

A shopkeeper wants to get 20% gain on an article after allowing a discount of 15%. If the article costs him Rs.153, what price should be mark on the article?