1.

The ratio of the present ages of Ajay and Vijay is 7 : 6 and the product of their ag4es is 672 years. How old was Vijay years ago? (1) 20 Years (2) 18 years (3) 15 years (4) 25 years

Answer»

(1) 20 Years 

Let present age be 7x and 6x 

7x × 6x = 672 

x2 = 672 / 42 = 16

x = 4 

Vijay age = 6x = 24 

4 years ago = 20



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