How to work it out
5% of 80 = 80 × 0.05 = 4
A percent means "per hundred", so 5% is 5/100, or 0.05. Multiply 80 by 0.05 to get 4. A quick mental shortcut: 10% of 80 is 8, so 5% is 8 × 0.5 = 4.
Related answers
- 80 plus 5% = 84 (an increase of 4)
- 80 minus 5% = 76, the price after a 5% discount
- 4 is 5% of 80, and 80 is 2,000% of 4
- If 80 is 5% of a number, that number is 1,600
Other percentages of 80
| Percent | Answer |
|---|---|
| 1% of 80 | 0.8 |
| 10% of 80 | 8 |
| 15% of 80 | 12 |
| 20% of 80 | 16 |
| 25% of 80 | 20 |
| 30% of 80 | 24 |
| 40% of 80 | 32 |
| 50% of 80 | 40 |
| 60% of 80 | 48 |
| 70% of 80 | 56 |
| 75% of 80 | 60 |
| 80% of 80 | 64 |
| 90% of 80 | 72 |
| 100% of 80 | 80 |
5% of other numbers
| Question | Answer |
|---|---|
| 5% of 20 | 1 |
| 5% of 50 | 2.5 |
| 5% of 60 | 3 |
| 5% of 100 | 5 |
| 5% of 150 | 7.5 |
| 5% of 200 | 10 |
| 5% of 250 | 12.5 |
| 5% of 500 | 25 |
| 5% of 1,000 | 50 |