P, Q and R have Rs.4000 among themselves. R has two-thirds of the total amount with P and Q. Find the amount with R? Answers:
A) rs . 3000  B) rs . 1600  C) rs . 2400  D) rs . 4000  E) none of these

Rationale: "let the amount with r be rs . r r = 2 / 3 ( total amount with p and q ) r = 2 / 3 ( 4000 - r ) = > 3 r = 8000 - 2 r = > 5 r = 8000 = > r = 1600 . answer : b"
Answer: B