The age of amit and his sister are in the ratio of 5 : 4. If amit is 45 years old, how old is his sister.Can Someone Help Me Solve this Qtn?.

Let Amit's age be 5x and his sister's age be 4x.

Amit's age = 45

$⇒5x=45\phantom{\rule{0ex}{0ex}}⇒x=\frac{45}{5}\phantom{\rule{0ex}{0ex}}⇒x=9$

Thus, his sister's age = 4x = 36 years

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amits age is 45 that means 5/4=45/________________.now we have to fill in the blank . 5x9=45 /4x9=36.the age of amit'ssister is 36 years.
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