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What is 40% of 10? = 4

40 percent of 10 is 4. See the step-by-step solution, formula and worked example for how to calculate 40% of 10.

40% of 10 = 4
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Solution: What is 40 percent of 10?

40% × 10 =
(40 ÷ 100) × 10 =
(40 × 10) ÷ 100 =
400 ÷ 100 = 4

Step-by-step explanation

  1. "Percent" means "per hundred", so 40% = 40 ÷ 100 = 0.4.
  2. "Of" means multiply, so we calculate 0.4 × 10.
  3. 0.4 × 10 = 4.
  4. So 40 percent of 10 is 4.

Good to know

Another way to check this: 1% of 10 is 0.1, and 40% is just 40 of those, so 40 × 0.1 = 4. Percentages like this come up everywhere — working out a 40% deposit, tip, tax or commission on 10, for example.

Quick reference: percentages of 10

1% of 100.1
5% of 100.5
10% of 101
15% of 101.5
20% of 102
25% of 102.5
50% of 105
75% of 107.5
100% of 1010

Frequently asked questions

What is 40 percent of 10?
40% of 10 is 4.

How do you calculate 40% of 10?
Divide 40 by 100 to get 0.4, then multiply by 10 to get 4.

What is 10 minus 40%?
10 − 4 = 6 (see 40% off 10).

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