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, then how old is B?

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Solution

The correct option is (D) 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.

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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, then how old is B?

The correct option is (D) 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=5Hence, B's age = 2x = 10 years.

The correct option is (D) 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.