- If 18% of a number is 720, then what is 81% of the same number?

- 1620
- 3160
- 24
- 3240

### Answer is d

2. If the salary of an individual is 1st increased by 20%, then it’s decreased by 20%, Find the percentage change in his salary is

- 4% increased
- 20% increased
- 4% decreased
- 8% decreased

### Answer is c

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3. The price of an article is reduced by 25% but the daily sale of the article is increased by 30%, the net effect on the daily sale receipts is

- 5/2% decreased
- 2% decreased
- 5/2% increased
- 2% increased

### Answer is a

4. Two successive price increases of 10% of an article are equivalent to a single price increase of

- 20%
- 22%
- 19%
- 21%

### Answer is d

5. If a number is increased by 20% and the resulting number is again increased by 20%, what percent is the total increased?

- 44%
- 40%
- 48%
- 41%

### Answer is **b**

Read More: Percentage Concepts