Elijah sold
35 of the puffs he made in the morning and half of the remainder in the evening. He had 18 puffs left unsold.
- How many puffs did he sell altogether?
- If he sold 3 puffs for $2.20, how much did he receive from the puffs he sold?
(a)
Fraction of the puffs left after selling in the morning
= 1 -
35 =
25 Fraction of the remaining puffs left after selling in the afternoon
= 1 -
12 =
12 Fraction of the puffs left after selling in the afternoon
=
12 x
25 =
210 Total number of puffs at first = 10 u
Number of puffs left = 2 u
2 u = 18
1 u = 18 ÷ 2 = 9
Number of puffs sold
= 10 u - 2 u
= 8 u
= 8 x 9
= 72
(b)
Number of sets of 3 puffs
= 72 ÷ 3
= 24
Amount that Elijah received from the puffs he sold
= 24 x 2.20
= $52.80
Answer(s): (a) 72; (b) $52.80