Question

3/5 of a number is 21, then find 2/5 of that number?
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Answer 1

Answer:

14

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Step-by-step explanation:

first, we need to find the unknown number. let it be n.

3/5 n = 21

n = 21 x 5/3

n = 7x5

n = 35

now, 2/5 of the same number = 2/5 n

2/5 x n = 2/5 x 35 = 2 x 7 = 14

Answer 2

Answer:we have to find x:-

3/5 : 21 :: 2/5 : x

3/5×x = 2/5×21

3/5x = 42/5

x = 42/5 × 5/3

x = 42/3= 14

ANSWER = 14