Christian wants to buy 14 identical pens as follows.
1 for $4.406 for $20.80 What is the least amount of money she needs to buy 14 such pens?
Maximum number of sets that Christian can buy
= 14 ÷ 6
= 2 r 2
Amount to pay for 2 sets of 6 pens
= 2 x 20.80
= $41.60
Amount to pay for the remaining pens not part of a set
= 2 x 4.40
= $8.80
Least amount that Christian needed to pay
= 41.60 + 8.80
= $50.40
Answer(s): $50.40