P, Q and R have $8000 among themselves. R has two-thirds of the total amount with P and Q. Find the amount with R?  Choose the most appropriate option:  A) 2400  B) 2403  C) 3200  D) 2539  E) 1930

Rationale: "c 3200 let the amount with r be $ r r = 2 / 3 ( total amount with p and q ) r = 2 / 3 ( 8000 - r ) = > 3 r = 16000 - 2 r = > 5 r = 16000 = > r = 3200 ."
Answer: C