How to work it out
40% of 20 = 20 × 0.4 = 8
A percent means "per hundred", so 40% is 40/100, or 0.4. Multiply 20 by 0.4 to get 8. A quick mental shortcut: 10% of 20 is 2, so 40% is 2 × 4 = 8.
Related answers
- 20 plus 40% = 28 (an increase of 8)
- 20 minus 40% = 12, the price after a 40% discount
- 8 is 40% of 20, and 20 is 250% of 8
- If 20 is 40% of a number, that number is 50
Other percentages of 20
| Percent | Answer |
|---|---|
| 1% of 20 | 0.2 |
| 5% of 20 | 1 |
| 10% of 20 | 2 |
| 15% of 20 | 3 |
| 20% of 20 | 4 |
| 25% of 20 | 5 |
| 30% of 20 | 6 |
| 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 |
40% of other numbers
| Question | Answer |
|---|---|
| 40% of 50 | 20 |
| 40% of 60 | 24 |
| 40% of 80 | 32 |
| 40% of 100 | 40 |
| 40% of 150 | 60 |
| 40% of 200 | 80 |
| 40% of 250 | 100 |
| 40% of 500 | 200 |
| 40% of 1,000 | 400 |