The task is to generate the correct answer for a given math problem.

Problem: the number of boxes in a warehouse can be divided evenly into 7 equal shipments by boat or 28 equal shipments by truck . what is the smallest number of boxes that could be in the warehouse ?
28

Problem: a rectangle having length 105 cm and width 40 cm . if the length of the rectangle is increased by twenty five percent then how much percent the breadth should be decreased so as to maintain the same area .
19.23 %

Problem: robert ate 7 chocolates , nickel ate 5 chocolates . how many more chocolates did robert ate than nickel ?

e )