Christopher wants to buy 13 identical staplers as follows.
1 for $4.806 for $21.50 What is the least amount of money she needs to buy 13 such staplers?
Maximum number of sets that Christopher can buy
= 13 ÷ 6
= 2 r 1
Amount to pay for 2 sets of 6 staplers
= 2 x 21.50
= $43.00
Amount to pay for the remaining staplers not part of a set
= 1 x 4.80
= $4.80
Least amount that Christopher needed to pay
= 43.00 + 4.80
= $47.80
Answer(s): $47.80