Question

present ages of x and y are in the ratio 5 : 6 if after 7 years this ratio becomes 6 : 7 then the present age of x is?​

Answer 1

Answer:

Let the present age of x and y = 5p and 6p

after 7 years = 5p+7 and 6p+7

A.T.Q

⇒5p+7:6p+7=6:7

⇒5p+7/6p+7=6/7

⇒7(5p+7)=6(6p+7)

⇒35p+49=36p+42

⇒36p-35p=49-42

⇒p=7

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Therefore the present age of x and y

⇒5p and 6p

⇒5×7 and 6×7

⇒35 and 42

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•Age after 7 years of x and y

⇒35+7 and 42+7

⇒42 and 49