Question 531715
If Mavis is 5 yrs older than her brother. 5 years ago she was twice her brother's age, how old are they now?
---------------------
Equations:
m = b + 5
m-5 = 2(b-5)
-------
Substitute for "m" and solve for "b":
b+5-5 = 2b - 10
brother = 10 yrs (Brother's age now)
--------
Solve for "m":
m = b + 5
m = 10+5 = 15 yrs (Mavis's age now)
====================================
Cheers,
Stan H.
==============