Question

A woman reduces her weight in the ratio 7:5. What does her weight become if
originally it was 91 kg?
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Answer 1

Answer:

Step-by-step explanation:

ANSWER = 65 kg

let's make the ratio 7:5 as a variable, 7x and 5x.

then,

7x = 91

so, let make this a direct variation problem,

7x  =  91

5x  =   ?

let's cross multiply by using unitary method,

7x*? = 5x*91

? = 5 * 91 / 7

? = 5 * 13

? =  65 kg

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