Elizabeth wants to buy 15 identical pencils as follows.
1 for $4.206 for $23.30 What is the least amount of money she needs to buy 15 such pencils?
Maximum number of sets that Elizabeth can buy
= 15 ÷ 6
= 2 r 3
Amount to pay for 2 sets of 6 pencils
= 2 x 23.30
= $46.60
Amount to pay for the remaining pencils not part of a set
= 3 x 4.20
= $12.60
Least amount that Elizabeth needed to pay
= 46.60 + 12.60
= $59.20
Answer(s): $59.20