Question

3/7 of 497/249 of ?=639

Answer 1

SOLUTION

GIVEN

3/7 of 497/249 of ? = 639

EVALUATION

Let P be the required number

So by the given condition

$\displaystyle \sf{ \frac{3}{7} \: \: of \: \: \frac{497}{249} \:of \: \: P = 639 }$

$\displaystyle \sf{ \implies \: \frac{3}{7} \times \frac{497}{249} \: \times \: P = 639 }$

$\displaystyle \sf{ \implies \: \: P = 639 \times \frac{249}{497} \times \frac{7}{3} }$

$\displaystyle \sf{ \implies \: \: P = 639 \times \frac{83}{71} }$

$\displaystyle \sf{ \implies \: \: P = 9 \times 83}$

$\displaystyle \sf{ \implies \: \: P = 747}$

Hence the required number = 747

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