12 increased by 25% = 15
12 increased by 25 percent is 15. Step-by-step solution with the formula and worked example.
12 increased by 25% = 15
increased by %
Solution: 12 increased by 25 percent
Increase = 25% × 12 = 3
Result = 12 + 3 = 15
Result = 12 + 3 = 15
Step-by-step explanation
- Find the increase: 25% of 12 = 3.
- Add it to the original: 12 + 3 = 15.
- 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 12 × 1.25 = 15 in a single step — handy for adding tax, interest or a markup.
Frequently asked questions
12 increased by 25 percent
12 increased by 25% = 15.
How is it calculated?
See the step-by-step solution above — it uses the standard percentage formula.
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