SOLUTION: a says to b,my present age is double of your that age when i was as old as you are now. if the sum of their present ages is 63 find their present ages

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Question 499320: a says to b,my present age is double of your that age when i was as old as you are now. if the sum of their present ages is 63 find their present ages

Answer by Maths68(1474) About Me  (Show Source):
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Let
Present age of a = a
Present age of b = b
a present age is double the age of b
a=2b
sum of thier ages
a+b=63
put the value of a in above equation
2b+b=63
3b=63
b=63/3
b=21
a=2b=2*21=42
a is 42 and b is 21 years old