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40 increased by 30% = 52

40 increased by 30 percent is 52. Step-by-step solution with the formula and worked example.

40 increased by 30% = 52
increased by %

Solution: 40 increased by 30 percent

Increase = 30% × 40 = 12
Result = 40 + 12 = 52

Step-by-step explanation

  1. Find the increase: 30% of 40 = 12.
  2. Add it to the original: 40 + 12 = 52.
  3. Shortcut: multiply by (1 + 30/100) = ×1.3.

Good to know

Shortcut: increasing by 30% is the same as multiplying by 1.3 (that is 100% + 30%). So 40 × 1.3 = 52 in a single step — handy for adding tax, interest or a markup.

Frequently asked questions

40 increased by 30 percent
40 increased by 30% = 52.

How is it calculated?
See the step-by-step solution above — it uses the standard percentage formula.

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