Laura is four years less than twice her son's age. The sum of their ages is 119. How old is Laura? How old is her son?

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asked Sep 11, 2018 107k views

1 Answer

StackPusher · Answer 1 · 2018-09-16T04:22:28+0000

L=Laura's age, S=sons age
L=2s-4
L+S=119
=> L=119-S
119-S = 2s-4
119+4=3s
123=3s
s=41 implies L=78
78+41=119
and 78=2*41-4
therefore Laura is 78 and her son is 41

Laura is four years less than twice her son's age. The sum of their ages is 119. How old is Laura? How old is her son?

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