1) A is 3 years younger than C but one year older than D. D is one year older than B but 4 years younger than C. C is 15 years old. What is the age of B in years? A) 10 B) 11 C) 12 D) 13 Answer: Option AExplanation:We have A = C - 3 , A = D + 1 ,D = B + 1, D = C - 4,C = 15 Thus D = 11, B = 10
