The average monthly salary of 19 members of a group is Rs. 16000. If one more members whose monthly salary is Rs. 20000 has joined the group, then the average salary of the group is

A profit of Rs. 960 is divided between A and B in the ratio 1/3:1/2. The difference of their profit is :

A cloth merchant has announced 25% rebate in prices. If one needs to have a rebate of ₹ 40, then how many metres of cloth costing ₹ 32 per metre he should purchase.

The area of a rectangle in 60 cm2 and its perimeter is 34 cm, then the length of the diagonal is

If the sum of a number and its reciprocal be 2, then the number is

The average production of table fans on Monday & Tuesdays exceeds the average production of table fans during the week by