If books bought at prices ranging from Rs.200 to Rs.350 are sold at prices ranging from Rs.300 to Rs.425,what is the greatest possible profit that might be made in selling eight books ?	Choose the correct answer:
A) Rs.400
B) Rs.600
C) Cannot be determined
D) None of these
E) Rs.800
Solution   Least C.P. = Rs.(200 8) = Rs.1600. Greatest S.P. = Rs.(425 8) = Rs.3400.   Required profit = Rs.(3400 - 1600) = Rs.1800. Answer None of these
<result>D</result>
If books bought at prices ranging from Rs.200 to Rs.350 are sold at prices ranging from Rs.300 to Rs.425,what is the greatest possible profit that might be made in selling eight books ?