2 A is older than B by 5 yr. Seven years hence, thrice A'sage shall be – InterviewSolution

1.

2 A is older than B by 5 yr. Seven years hence, thrice A'sage shall be equal to four times that of B. The presentage of A is

Answer»

Let age of A=xLet age of B=y

x=y+5x-y=5or -4x+4y=-20

3(x-7)=4(y-7)3x-4y=-7

Adding the two equations,-x=-27x=27y=22

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