Tell me answer of Q12
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Let the present age of M = 5x
So, age of R = 7x
Eight years ago their age was
M = 5x-8
R=7x-8
So, apq
5x-8/7x-8 =7/13
13(5x-8) = 7(7x-8)
65x - 104=49x-56
65x-49x=104-56
16x= 48
X= 48/16 = 3
Age of M = 5*3=15yrs
Age of R=7*3=21yrs
So, age of R = 7x
Eight years ago their age was
M = 5x-8
R=7x-8
So, apq
5x-8/7x-8 =7/13
13(5x-8) = 7(7x-8)
65x - 104=49x-56
65x-49x=104-56
16x= 48
X= 48/16 = 3
Age of M = 5*3=15yrs
Age of R=7*3=21yrs
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