Question

3. If 5/7 part of a number is 15, then its 3/7 th part Will be​

Answer 1

Answer:

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Answer 2

Answer:

let the no be x

According to the question,

$x \times \frac{5}{7} = 15 \\ \frac{x}{1} \times \frac{5}{7} = 15 \\ \frac{5x}{7} = 15 \\ 5x = 15 \times 7 \\ x = 105 \div 5 \\ x = 21$

So,

$x \times \frac{3}{7} = ?$

Substitute x value

$21 \times \frac{3}{7} \\ \frac{21}{1} \times \frac{3}{7}$

after cancellation

$3 \times 3 \\ = 9$