Sachin ki aayu rahul ki aayu se 4 varsh kam hai , yadi dono ki aayu ka anupat kramsh 7:9 hai to vartman me sachin ki aayu kya hogi.

Let the age of sachin be 'x'

Now since rahul is greater than sachin by 4 years then the age of rahul will be x+4

Now the ratio of their ages is 7:9

=x/(x+4)=7/9

= 9x = 7(x+4)

= 9x=7x+28

=9x -7x =28

=x= 28/2=14

Therefore the age of sachin is 14

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