Question

one fifth of a number is 9 find the number

Answer 1

$\frac{1}{5} = 9 \\ 1 = 9 \times 5 \\ 1 = 45. \\ \\ which \: means \: the \: number \: is \: 45$
The answer is 45.

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Answer 2

Given :

One-fifth of number is 9.

To find:

The required number.

Solution:

Let the number is x

One fifth = 1/5

One-fifth of a number = (1/5)x

According to the given question -

$= > \dfrac{1}{5} \times x = 9$

$= > \dfrac{x}{5} = 9$

$= > x = 9 \times 5$

$= > x = 45$

Hence, the required number is 45