A is 3 year older to B and 3 year younger to C, while B and D are twins. How many years older is C to DA2B3C6D12Answer: C. 6 Read Explanation: Since B and D are twins, B =D Now A = B + 3 and A = C-3 Then B+3 = C-3, D+3 = C-3 C-D= 6Read more in App