Question

Divya is 4 year yonger than navya two years ago the ratio is 7:9 find the present age of navya

Answer 1

Age of A : B = 7 : 9

Let the ages of A before seven years =7x

°.° Then the age of A at that time =7x + 7 =A

or, Let the ages of B before seven years =9x

°.° Then the age of B at that time =9x + 7 =B

then as given,

C=A+12 = B - 12………Eq.(i)

By putting the value of A, B in eq. (i)

°.° 7x+7+12 = 9x+7–12

x=12

So, A=7x+7 = 91

B = 9x+7 = 115

C = A+12 = 103.

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