1.

Sum of the present ages of Ram and Raju is 31. 3 years ago Ram's age was 4 times the age of Raju. Find their present ages.

Answer»

Let the age of ram be X and age of Raju be y.

X+y=31......so X=31-y-------->1

3yrs back

X-3=4(y-3)

X-3=4y-12

X-4y=-9

Now substitute eqn 1 in this eqn

(31-y)-4y=-9

31-5y=-9

-5y=-9-31

5y=40

Y=8

So substitute y=8 in X=31-y

X= 31-8

X=23.

So ram is 23 and Raju is 8

Thank You So Much



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