Question 347796
abe and his younger sister are 3 years apart in age. if the sum of their ages will be 35 next year, what are their ages now?


Let Abe's current age be A, and his sister's age S


Then
A - S = 3_____eq (i)
(A + 1) + (S + 1) = 35____A + S = 33_____eq (ii)


A - S = 3______eq (i)
A + S = 33_____eq (ii)
2A = 36


A, or Abe's current age = {{{36/2}}}, or {{{highlight_green(18)}}} years.


18 - S = 3____- S = - 15____S, or sister's current age = {{{(-15)/-1}}} = {{{highlight_green(15)}}} years.