40% of 10 is 4. To calculate this: 1) Convert 40% to decimal (40/100 = 0.4), 2) Multiply by 10 to get 4.

What is 40% of 10?

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Result

40% of 10 = 4

40\% \times 10 = 10 \times \frac{40}{100} = 4

40% means 40 parts out of 100. To convert a percentage to a decimal, we divide by 100: 40% = 0.4

We multiply our number (10) by the decimal form of the percentage (0.4):
10 × 0.4 = 4

This means that 40% or 0.4 of 10 is 4. In other words, if you take 40% of 10, you get 4.

When a $10 product has a 40% discount, you save $4 and pay $6.

If you want to leave a 40% tip on a $10 meal, you would leave $4 as the tip.

When 40% sales tax is added to a $10 purchase, $4 is added for tax, making the total $14.

If 40% of students in a class are boys and there are 10 students total, that means there are 4 boys.

If you invest $10 and earn 40% annual interest, you'll receive $4 in interest for the year.

If a student answers 40% of questions correctly on a 10-question test, they answered 4 questions correctly.

If 40% of your monthly revenue goes to operating expenses and you earn $10, you spend $4 on operations.

If a hospital reduces infections by 40% from 10 cases monthly, they now have only 6 cases per month.

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