Instructions

For the following questions answer them individually

Question 2

The rate of discount being given on a shirt,where selling price is Rs. 546 after deducting a discount of Rs. 109 on its marked price, is

Question 3

If the ratio of two numbers is 1:5 and their product is 320, then the difference between the squares of these two numbers is

Question 4

Numbers of boys and girls are 'x' and 'y' respectively ; average ages of a girl and a boy are 'a' years and 'b' years respectively. The average age (in years) of all boys and girls.

Question 5

A man bought 30 defective machines for Rs. 1000. He repaired and sold them @ Rs. 300 per machine. He got profit of Rs. 150 per machine. How much did he spend on repairs ?(in Rupees)

Question 7

A motor cycle gives an average of 45 km per litre. If the cost of petrol is Rs. 20/litre. The amount required to complete a journey of 540 km is, (in Rupees)

Question 8

A sum of money amounts to Rs. 6655 at the rate of 10% compounded annuallly for 3 years. The sum of money is