2 Answers

Ben Hamner · Answer 1 · 2019-01-16T15:45:30+0000

Let the unknown number be x.

25% of x is 21

25% * x = 21

0.25 * x = 21

0.25x = 21

0.25x/0.25 = 21/0.25

x = 84

Answer: The number is 84.

Enthusiast Martin · Answer 2 · 2019-01-20T18:00:40+0000

Hey there! :D

25% represents a quarter of a number.

If 21 is a quarter of a number, multiply it by 4.

21*4= 84

21 is 25% of 84.

I hope this helps!
~kaikers

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