Rani is two years older than Banu who is twice as old as Chitra. If the total of the age of Rani, Banu and Chitra be 32 years, then how old is Banu ?	Choose the correct choice from the following answers.
A) 7 years B) 10 years C) 12 years D) 13 years E) 14 years
Let Chitra's age be x years. Then, Banu's age = 2x years.Rani's age = (2x + 2) years.   (2x + 2) + 2x + x = 32   5x =30   x = 6   Hence, Banu's age = 2x = 12 years.   Answer : 12 years
<result>C</result>
Rani is two years older than Banu who is twice as old as Chitra. If the total of the age of Rani, Banu and Chitra be 32 years, then how old is Banu ?