SOLUTION: The ratio of Sunita’s age to Mark’s age is currently 3 to 4, and in 12 years, it will be 5 to 6. What is Mark’s current age?

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Question 1080208: The ratio of Sunita’s age to Mark’s age is currently 3 to 4, and in 12 years, it will be 5 to 6. What is Mark’s current age?
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
m, Mark
s, Sunita

system%28s%2Fm=3%2F4%2C%28s%2B12%29%2F%28m%2B12%29=5%2F6%29

5%28m%2B12%29=6%28s%2B12%29
5m%2B60=6s%2B72
5m=6s%2B12

5m=6%283m%2F4%29%2B12
5m=9m%2F2%2B12
10m=9m%2B24
highlight%28highlight%28m=24%29%29
highlight%28s=18%29