Two students appeared for an examination. One student who scored 20 marks more than the other, his score was 60 % of the sum of their marks. What was his score?

After an increase in tea price by 40% a family reduce its consumption of tea to the extent that there should be an increase on tea expense only by 10%. If the earlier consumption of tea was 28 kg, then what will be their new consumption?

Two numbers are more than the third number by 20 % and 50 % respectively. Find the first number is what percent of the second number? 

With the increase in the price of sugar by 45%, a consumer can buy 9 kg less sugar for Rs. 1740. What is the increased price per kg of sugar?

When the price of an audio system was reduced by 20%, the sale increased by 80%. What was the net effect on the sale?

What is the difference between 0.6 and 0.6%?

Atul divides some money among his three children A, B and C. The ratio of amount received by A and C together to the amount received by B is 5:2. C received 150% of the amount received by A. If the amount received by C is Rs. 1500. Find the sum of amount received by A and B together. 

15% of 45% of a number is 105.3 What is 24% of that number?