three-quarters of a number is 15, work out four-fifths of the number. Question three-quarters of a number is 15, work out four-fifths of the number. in progress 0 Math Eden 3 months 2021-10-15T17:45:38+00:00 2021-10-15T17:45:38+00:00 2 Answers 0 views 0

## Answers ( )

Answer:16

Step-by-step explanation:1) Let the number be x.

2) Therefore, (3x/4) = 15.

3) x = 20.

4) (4/5) × 20 = 16.

Let the number be x

so, three-quarters of a number is 15

3x/4 =15

x=20

Now, four-fifths of the number

=4x/5

=4/5 ×20

## =16

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