A, B and C have Rs.400 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) 150	B) 140	C) 130	D) 120	E) 110

Rationale: "a + b + c = 400 a + c = 200 b + c = 350 - - - - - - - - - - - - - - a + b + 2 c = 550 a + b + c = 400 - - - - - - - - - - - - - - - - c = 150 answer : a"
Answer: A