166,760 views
45 votes
45 votes
Twelve years ago Eric’s father was seven times as old as Eric was. If Eric’s father is now 54 years old, how old is Eric?

User Oviroa
by
3.0k points

2 Answers

8 votes
8 votes

Answer: 18

Explanation:

54 - 12 = 42 (dads age 12 years ago) 42 / 7 = 6 (divided by 7 because he was 7 times as old as him 6 + 12 (the age the son was 12 years ago plus the years that have passed since then)

User Alex Bodea
by
2.7k points
12 votes
12 votes
let 54 = be Eric's father's age now
let x = be Eric's age now
54 - 12 = 7(x-12)
42 = 7x - 84
42 + 84 = 7x
126 = 7x
18 = x
THEREFORE, ERIC'S AGE IS 18
User Alexandre Moraes
by
2.8k points
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