20 increased by 55% = 31
20 increased by 55 percent is 31. Step-by-step solution with the formula and worked example.
20 increased by 55% = 31
increased by %
Solution: 20 increased by 55 percent
Increase = 55% × 20 = 11
Result = 20 + 11 = 31
Result = 20 + 11 = 31
Step-by-step explanation
- Find the increase: 55% of 20 = 11.
- Add it to the original: 20 + 11 = 31.
- Shortcut: multiply by (1 + 55/100) = ×1.55.
Good to know
Shortcut: increasing by 55% is the same as multiplying by 1.55 (that is 100% + 55%). So 20 × 1.55 = 31 in a single step — handy for adding tax, interest or a markup.
Frequently asked questions
20 increased by 55 percent
20 increased by 55% = 31.
How is it calculated?
See the step-by-step solution above — it uses the standard percentage formula.
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