Question

Lane is 10 times Mel's age. If the difference in their age is 27, how old is Mel?

Answer 1

l - Lane's age
m- Mel's age.
Lane is 10 times Mel's age, so 10m = l
difference in their age is 27 so l - m = 27
Substitute l = 10m and you'll have:
10m - m = 27
9m = 27 /:9
m=3
And l = 10m = 10*3 = 30

So Lane has 3 years old and Mel has 30 years old.