21 increased by 20 percent

Here you will see step by step solution to calculate 21 increased by 20 percent. What is 21 increased by 20%? It is 25.2, and the increase is 4.2. Check the detailed explanation of answer given below.

Answer: 21 increased by 20% is

= 25.2

How to increase the number 21 by 20 percent?

With the help of given formula we can get the the percent increase value -

formula 1: Percentage increase = P% × n, P = Percent, n = Number

formula 2: Result = n + Percentage increase
Here we have, n = 21, P = 20%

Solution for 21 increased by 20 percent(20%) -

Given number n = 21, P = 20%

  • Put the n and P values in the given formula:
  • => 20% × 21
    => 20/100 × 21

  • Now we need to simplify the fraction by multiply 20 with 21, then divide it by 100
  • => 20 × 21/100 = 420/100 = 4.2
  • Percentage Increase = 4.2
  • Now we will use formula 2 to get the value of 21 increased by 20%
  • = 21 + 4.2
    = 25.2

Therefore, result is for 21 increased by 20% is 25.2 and increase is 4.2.

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