50% of 20 = 10
10
50% of 20 is 10.
The working
20 × 0.5 = 10
Off and on
After the discount10
With it added30
A 50% discount takes off 10, leaving 10. Adding 50% as tax or tip brings it to 30.
The other way round
50 / 20250%
The whole20
50 is 250% of 20. And if 10 is the 50%, the whole was 20.
Other percentages of 20
50% of other numbers
10 → 520 → 1025 → 12.530 → 1540 → 2050 → 2560 → 3070 → 3575 → 37.580 → 4090 → 45100 → 50120 → 60125 → 62.5150 → 75200 → 100250 → 125300 → 150350 → 175400 → 200500 → 250600 → 300700 → 350750 → 375800 → 400900 → 4501,000 → 5001,200 → 6001,500 → 7502,000 → 1,0002,500 → 1,2503,000 → 1,5005,000 → 2,5007,500 → 3,75010,000 → 5,00015,000 → 7,50020,000 → 10,00025,000 → 12,50050,000 → 25,000100,000 → 50,000
How to read it
- Percent means hundredths. 15% is 0.15, so multiplying the base by 0.15 gives the answer.
- A discount subtracts, tax or tip adds. For the same 15%, the gap between the two results is twice the value.
- "What percent" is a division: 15 ÷ 200 × 100. When it does not come out even, the figure shown is rounded.
Common questions
Q. What is 50% of 20?
10. That is 20 × 0.5.
Q. What is 20 minus 50%?
10 — you take off 10.
Q. What is 20 plus 50%?
30, the figure with tax or a tip on top.
Q. If 10 is 50%, what is the whole?
20.