Alexander wants to buy 13 identical markers as follows.
1 for $3.706 for $21.70 What is the least amount of money she needs to buy 13 such markers?
Maximum number of sets that Alexander can buy
= 13 ÷ 6
= 2 r 1
Amount to pay for 2 sets of 6 markers
= 2 x 21.70
= $43.40
Amount to pay for the remaining markers not part of a set
= 1 x 3.70
= $3.70
Least amount that Alexander needed to pay
= 43.40 + 3.70
= $47.10
Answer(s): $47.10