How to work it out
20% of 20 = 20 × 0.2 = 4
A percent means "per hundred", so 20% is 20/100, or 0.2. Multiply 20 by 0.2 to get 4. A quick mental shortcut: 10% of 20 is 2, so 20% is 2 × 2 = 4.
Related answers
- 20 plus 20% = 24 (an increase of 4)
- 20 minus 20% = 16, the price after a 20% discount
- 4 is 20% of 20, and 20 is 500% of 4
- If 20 is 20% of a number, that number is 100
Other percentages of 20
| Percent | Answer |
|---|---|
| 1% of 20 | 0.2 |
| 5% of 20 | 1 |
| 10% of 20 | 2 |
| 15% of 20 | 3 |
| 25% of 20 | 5 |
| 30% of 20 | 6 |
| 40% of 20 | 8 |
| 50% of 20 | 10 |
| 60% of 20 | 12 |
| 70% of 20 | 14 |
| 75% of 20 | 15 |
| 80% of 20 | 16 |
| 90% of 20 | 18 |
| 100% of 20 | 20 |
20% of other numbers
| Question | Answer |
|---|---|
| 20% of 50 | 10 |
| 20% of 60 | 12 |
| 20% of 80 | 16 |
| 20% of 100 | 20 |
| 20% of 150 | 30 |
| 20% of 200 | 40 |
| 20% of 250 | 50 |
| 20% of 500 | 100 |
| 20% of 1,000 | 200 |