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If the sister is twice the age of the brother and they are 15 years apart in age How old is the younger brother?
Wiki User
∙ 14y ago
The younger brother is 15. Let x be the age of the brother, 2x be the age of the sister, 15 their age gap. Then, write the equation based on the facts given:
2x - x = 15
x = 15 (age of the brother)
Check the solution by replacing the value of x:
2(15) - 15 = 15
30 - 15 = 15
15 = 15
Wiki User
∙ 14y ago
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