Question 1142492: Mary is now 6 times as old as Nancy was eight years ago. How old is Nancy today if Mary is 30 years old? Answer by ikleyn(52803) (Show Source):
From the condition, you have this equation
M = 6*(N-8),
and you know that M = 30.
Hence, the equation becomes
30 = 6*(N-8),
and you can easily solve it
30/6 = N - 8
5 = N - 8
N = 5 + 8 = 13.
ANSWER. Nancy is 13 years old.
