Question

Shyam lost his weight in the ratio 9 :5 His original weight was 90 kg . what is his new weight​

Answer 1

$9 : 5 = 90 : x \\ \\ \frac{9}{5} = \frac{90}{x} \\ \\ \frac{9}{5} \times \frac{1}{90} = \frac{1}{x} \\ \\ \frac{1}{50} = \frac{1}{x} \\ \\ \implies \: x = \frac{1}{ \frac{1}{50} } \\ \\ \tt \pink{ \implies \: x = 50}$

Answer 2

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