SOLUTION: jean is twice as old as bob. the sum of thier ages 3 years ago was 45 years. what are thier ages now?
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Question 123284: jean is twice as old as bob. the sum of thier ages 3 years ago was 45 years. what are thier ages now?
Found 2 solutions by Superownage, chitra:
Answer by Superownage(7) (Show Source): You can put this solution on YOUR website!
Hello, this one can be a bit of a problem. Add three years for both of the people, so 51 is the new total. Now jean is 2x (2 times as old as bob) and bob is x, there are three parts of this so 51/3 = bob is 17 and jean is 34
Answer by chitra(359) (Show Source): You can put this solution on YOUR website!
Let bobs age be "x" yrs.
So, therefore Jeans age = 2x
Given that sum of their ages 3 yrs ago was 45 yrs
(x + 2x) - 3 = 45
3x - 3 = 45
3(x - 1) = 45
(x - 1) = 45/3
x - 1 = 15
x = 15 + 1
x = 16 yrs
This is Bobs age
So therefore Jeans age is:
2(x) = 2(16)
= 32 yrs
Jeans age is 32 yrs.
these are their current ages.
Regs
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