15 increased by 25% = 18.75
15 increased by 25 percent is 18.75. Step-by-step solution with the formula and worked example.
15 increased by 25% = 18.75
increased by %
Solution: 15 increased by 25 percent
Increase = 25% × 15 = 3.75
Result = 15 + 3.75 = 18.75
Result = 15 + 3.75 = 18.75
Step-by-step explanation
- Find the increase: 25% of 15 = 3.75.
- Add it to the original: 15 + 3.75 = 18.75.
- Shortcut: multiply by (1 + 25/100) = ×1.25.
Good to know
Shortcut: increasing by 25% is the same as multiplying by 1.25 (that is 100% + 25%). So 15 × 1.25 = 18.75 in a single step — handy for adding tax, interest or a markup.
Frequently asked questions
15 increased by 25 percent
15 increased by 25% = 18.75.
How is it calculated?
See the step-by-step solution above — it uses the standard percentage formula.
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