Question

A woman is now 30 years older than her son. 15 years ago, she was twice as old. What are the present ages of the woman and her son?

Answer 1

75 and 45

Explanation:

woman's age= w

son's age= s

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• w=s+30
• w-15=(s-15)*2 ⇒ w-15=2s-30 ⇒ w=2s- 15

comparing the two above:

• s+30=2s-15 ⇒ s= 45 ⇒ w= 75