If a man sold the radio for Rs. 1980 and earned a profit of 10%, he would have bought the radio for

A,B,C put Rs. 26000, Rs. 34000 and Rs. 10000 respectively in a business on partnership. If the profit is Rs. 3500 B’s share will be

The price of a scooter and TV are in the ratio of 3:2 and if the scooter costs Rs. 6000 more than the TV, the price of the TV will be

The average age of 3 boys is 15 years. Their ages are in the ratio of 3:5:7. If so the age of the youngest boy is

L.C.M. of 87 and 145 is

H.C.F of 14 85 and 4356 is