SOLUTION: Happy is four times as old as Grumpy. The sum of their age is 100. How old are Happy and Grumpy?

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Question 1124592: Happy is four times as old as Grumpy. The sum of their age is 100. How old are Happy and Grumpy?
Answer by mastergerwe(4) About Me  (Show Source):
You can put this solution on YOUR website!
let Grumpy = x
4x+x =100
5x=100
x=20
100-20=80
Happy = 80