Percentage

The value of a machine depreciates 10% annually. If its current value is Rs. 81000, what was its value 2 years ago?

40% of a number is equal to 3/5th of another number. Find the ratio of first number to second number.

In an examination, 80% candidates passed in English and 85% passed in Mathematics. If 73% passed in both, find the percentage of candidates who failed in both.

A number is increased by 20%. To get back to the original number, it must be reduced by:

If 50% of (x-y) = 30% of (x+y), what percent of x is y?

If 20% of an electricity bill is deducted, Rs. 100 is still to be paid. How much was the original bill?

The population of a city increases at 5% p.a. If current is 926100, what was it 3 years ago?

If 10% of x is the same as 20% of y, then x:y is:

A spends 40% on food, 20% on rent, 10% on entertainment and 10% on conveyance. If his savings are Rs. 1500, find his income.

What is the percentage increase in area of a circle if its radius is doubled?

In an alloy, there is 12% copper. To get 69 kg of copper, how much alloy is required?

A candidate scores 25% and fails by 30 marks. Another scores 50% and gets 20 marks more than pass. Find total marks.

If 5% of x = y, then y% of 20 is the same as:

Price of an article is reduced by 25%. In order to retain original price, the present price has to be increased by:

In a town, 40% of people are illiterate and 60% are poor. Among the rich, 10% are illiterate. What percentage of the poor population is illiterate?

If a student's marks are increased by 20%, they become 72. What were the original marks?

What is 12% of 400?

Express 0.01 as a percentage.

Find 200% of 20.

30 is what percent of 120?