I can set up the equation for GMAT CLUB TEST 15 problem 20 but cannot seem to solve. Is there anyone that can break this down for me? I am banging my head up against the wall in frustration. (see below).
Tom read a book containing 480 pages by reading the same number of pages each day. If he would have finished the book 5 days earlier by reading 16 pages a day more, how many days did Tom spend reading the book?
(C) 2008 GMAT Club - m15#20
Any help is much appreciated!
Better work with choices....
E is out straightaway because 480/18 is not an integer....Tom can not read pages in fractions....
Now With choices...
480/10 = 48 pages add 16 pages 64 480/64 doesnt gives 5 days (not an integer)
480/12 = 40 pages add 16 pages 56 480/56 doesnt gives 7 days (not an integer)
480/15 = 32 pages add 16 pages 48 gives 480/48 as 10 days......Answer...
No need to check D
Hope this helps ......( I would better avoid forming equations in this case)
CONSIDER AWARDING KUDOS IF MY POST HELPS !!!