Three years ago , the average age of A, B and C was 27 years and that of B and C 5 years ago was 20 years. A’s present age is :	Select the correct option:
A) 22
B) 88
C) 40
D) 87
E) 17
Explanation:   Sum of the present ages of A, B and C = (27× 3 + 3 × 3) years = 90 years.   Sum of the present ages of B and C = (20 × 2 + 5 × 2) years = 50 years.   A's present age = 90 – 50 = 40 years.   Answer: 40
<result>C</result>
Three years ago , the average age of A, B and C was 27 years and that of B and C 5 years ago was 20 years. A’s present age is :