P, Q and R have $4000 among themselves. R has two-thirds of the total amount with P and Q. Find the amount with R?  Select:
A) 2400
B) 2403
C) 3998
D) 2539
E) 1600
1600   1600   Let the amount with R be $ r   r = 2/3 (total amount with P and Q)   r = 2/3(4000 - r) =&gt; 3r = 8000 - 2r   =&gt; 5r = 8000 =&gt; r = 1600.
<result>E</result>
P, Q and R have $4000 among themselves. R has two-thirds of the total amount with P and Q. Find the amount with R?