A number is first increased by 10% and then it is further increased by 20%. The original number is increased altogether by:

If the price of a commodity is decreased by 20% and its consumption is increased by 20%, what will be the increase or de- crease in the expenditure on the commodity?

The Government reduced the price of sugar by 10 per cent. By this a consumer can buy 6.2 kg more sugar for ₹ 837. The reduced price per kg of sugar is:

A number is first decreased by 10% and then increased by 10%. The number so obtained is 50 less than the original number. The original number is:

The price of petrol is increased by 25%. By how much percent a car owner should reduce his consumption of petrol so that the expenditure on petrol would not be increased?

Two pipes of length 1.5 m and 1.2 m are to be cut into equal pieces without leaving any extra length of pipes. The greatest length of the pipe pieces of same size which can be cut from these two lengths will be

Three bells ring at interval of 36 seconds, 40 seconds and 48 seconds respectively. They start ringing together at a par- ticular time They will ring to gether after every 

The LCM of four consecutive numbers is 60 The sum of the first two numbers is equal to the fourth number. What is the sum of four numbers?