A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, the how old is B?
A
7
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B
8
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C
9
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D
10
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E
1
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Solution
The correct option is C 10 Let C's age be x years. Then, B's age = 2x years. A's age = (2x + 2) years. ∴(2x+2)+2x+x=27 ⇒5x=25 ⇒x=5 Hence, B's age = 2x = 10 years