Asked by Anonymous
The ratio of Alan's age to Ben's age is 5 : 3 now. 6 years ago,
the ratio was 7: 3. How old was Ben 6 years ago?
the ratio was 7: 3. How old was Ben 6 years ago?
Answers
Answered by
oobleck
a/b = 5/3
(a-6)/(b-6) = 7/3
or
3a = 5b
3(a-6) = 7(b-6)
3a-18 = 7b-42
5b-18 = 7b-42
24 = 2b
b = 12
so a = 5/3 * 12 = 20
(a-6)/(b-6) = 7/3
or
3a = 5b
3(a-6) = 7(b-6)
3a-18 = 7b-42
5b-18 = 7b-42
24 = 2b
b = 12
so a = 5/3 * 12 = 20
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.