SOLUTION: A mother is 40 years old, and her son is 10 years old. How many years must pass so that the age of the mother triples that of the child?

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Question 1187025: A mother is 40 years old, and her son is 10 years old. How many years must pass so that the age of the mother triples that of the child?
Found 2 solutions by josgarithmetic, Alan3354:
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
40 mother
10 child
x, in how many years

%2840%2Bx%29%2F%2810%2Bx%29=3
Solve this equation.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
A mother is 40 years old, and her son is 10 years old. How many years must pass so that the age of the mother triples that of the child?
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The difference is constant at 30 years.
---> 15 & 45