Question 1205277
In two years, Mike's grandmother will be five times as old as Mike will be then. If the sum 
of their current ages is 68. What is the age of Mike now?
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In 2 years, G = 5M
In 2 years, the sum will be 68+4 = 72
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In 2 years,
G = 5M and
G + M = 72
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M + 5M = 72
M = 12 (in 2 years)