The average age of A, B and C is 25 years. If the average age of A and C is 29 years, what is the age of B in years ?  Choose the most appropriate option:
A) 17
B) 35
C) 20
D) 32
E) 21
17ge of B = 17ge of (17 + B + C) â€“ 17ge of (17 + C) = 25 Ã— 3 â€“ 29 Ã— 2 = 75 â€“ 58 = 17 years   17
<result>A</result>
The average age of A, B and C is 25 years. If the average age of A and C is 29 years, what is the age of B in years ?