A, B and C have Rs.450 between them, A and C together have Rs.200 and B and C Rs.350. How much does C have?  Choose the correct choice from the following options:
A) 100  B) 110  C) 120  D) 130  E) 140

Rationale: "a + b + c = 450 a + c = 200 b + c = 350 - - - - - - - - - - - - - - a + b + 2 c = 550 a + b + c = 450 - - - - - - - - - - - - - - - - c = 100 answer : a"
Answer: A