Asked by xyz
Today,aditi is as old as barkha will be 9 yr from now.5 yrs ago,aditi was 1.5 times as old as barkha was at that time.what will be the sum of ages of aditi and barkha 4 yr hence?
Answers
Answered by
Steve
if their ages today are a and b, then we have
a = b+9
a-5 = 1.5(b-5)
b+9-5 = 1.5b - 7.5
11.5 = .5b
b = 23
so, a=b+9=32
(a+4)+(b+4) = 36+27 = 63
a = b+9
a-5 = 1.5(b-5)
b+9-5 = 1.5b - 7.5
11.5 = .5b
b = 23
so, a=b+9=32
(a+4)+(b+4) = 36+27 = 63