SOLUTION: The ratio of the ages of A and B ten years ago was 3:5. If the ratio of their present ages is 2:3 how old is B today?
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Question 766567: The ratio of the ages of A and B ten years ago was 3:5. If the ratio of their present ages is 2:3 how old is B today?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
The ratio of the ages of A and B ten years ago was 3:5.
If the ratio of their present ages is 2:3
how old is B today?
:
Let x = the multiplier
then
2x = age of A
3x = age of B
:
=
cross multiply
5(2x-10) = 3(3x-10)
10x-50 = 9x-30
10x - 9x = -30 + 50
x = 20 is the multiplier
:
3*20 = 60 is B's age
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