Percentage Practice Exercise

1. When 75% of a number is added to 75, it results in the number itself. Find the number?

2. What is the total number of students at an exam if 31% failed and the number of those who passed exceeded the number of those who failed by 247?

3. A earns 10% more than B but 15% less than C. If B earns Rs. 85, then what does ‘C’ earn?

4. The length and breadth of rectangular field are both increased by 20%. By what percentage is the area increased?

5. The petrol prices are reduced by 10%. Find by what percentage user must increase his consumption of petrol so as not to decrease his expenditure on petrol?

6. At an election, A expected to beat his only rival B by 300 votes but 50 of his supporters did not go at all and an equal number changed over to the other side. If A still wins by a margin of 15% of the votes finally cast in his favour, find the number of votes cast in the favour of his rival.

7. In an exam, a student who got 30% of the total marks failed by 100 marks. Another student who got 45% of the total got 50 marks more than necessary for passing. Find the maximum marks and passing marks?

8. A reduction of 20% in the price of tea enables me to get 5.2kg more tea for Rs. 130. Find the reduces as well as original price.

9. Manish went to the market and had just enough money to buy 50 oranges or 40 mangoes. He keeps 20% of the money aside for the taxi fare, buys 20 mangoes and spends the balance for oranges. How many oranges did he buy?

10. Juhi gets a stationary allowance of Rs. 44, which is spent on buying 5 pens and 4 markers. On the other hand, if she decides to buy 2 pens & 7 markers, she find herself 12% short. How much does each marker cost?