How to work it out
50% of 20 = 20 × 0.5 = 10
A percent means "per hundred", so 50% is 50/100, or 0.5. Multiply 20 by 0.5 to get 10. A quick mental shortcut: 10% of 20 is 2, so 50% is 2 × 5 = 10.
Related answers
- 20 plus 50% = 30 (an increase of 10)
- 20 minus 50% = 10, the price after a 50% discount
- 10 is 50% of 20, and 20 is 200% of 10
- If 20 is 50% of a number, that number is 40
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 |
| 40% of 20 | 8 |
| 60% of 20 | 12 |
| 70% of 20 | 14 |
| 75% of 20 | 15 |
| 80% of 20 | 16 |
| 90% of 20 | 18 |
| 100% of 20 | 20 |
50% of other numbers
| Question | Answer |
|---|---|
| 50% of 50 | 25 |
| 50% of 60 | 30 |
| 50% of 80 | 40 |
| 50% of 100 | 50 |
| 50% of 150 | 75 |
| 50% of 200 | 100 |
| 50% of 250 | 125 |
| 50% of 500 | 250 |
| 50% of 1,000 | 500 |