Caleb wants to buy 15 identical pencils as follows.
1 for $4.306 for $24.20 What is the least amount of money she needs to buy 15 such pencils?
Maximum number of sets that Caleb can buy
= 15 ÷ 6
= 2 r 3
Amount to pay for 2 sets of 6 pencils
= 2 x 24.20
= $48.40
Amount to pay for the remaining pencils not part of a set
= 3 x 4.30
= $12.90
Least amount that Caleb needed to pay
= 48.40 + 12.90
= $61.30
Answer(s): $61.30