Joseph's income is decreased by 10%, by what percent the new income has to be increased to bring his income back to the previous level?

The salary of a person is increased by 20%. By what % the new salary must be reduced to restore the original salary?

Two candidates fought an election. One of them got 65% of the total votes casted and won by 420 votes. What is the total number of votes polled if no vote is declared invalid?

Direction: Study the following information carefully and answer the questions given below.
 25% of the boys and 60% of the girls from a college participated in an event. The total number of girls in the college is equal to the number of boys, who do not participate in the event.

The number of girls, who participated in the event is what percent more than the number of boys, who participated in the event?

0.15% of of ₹ 10000 is :

The price of sugar is reduced by 20%. Now a person can buy 500g more sugar for ₹ 36. The original price of the sugar per kilogram was: 

Rishu saves x% of her income. If her income increases by 26% and the expenditure increases by 20%, then her savings increase by 50%. What is the value of x?

When the tax on an article is increased by 20%, its consumption is decreased by 20%. In total tax receipt on this item-