Charlie sold
35 of the wafers he made in the morning and half of the remainder in the afternoon. He had 12 wafers left unsold.
- How many wafers did he sell altogether?
- If he sold 4 wafers for $3.90, how much did he receive from the wafers he sold?
(a)
Fraction of the wafers left after selling in the morning
= 1 -
35 =
25 Fraction of the remaining wafers left after selling in the afternoon
= 1 -
12 =
12 Fraction of the wafers left after selling in the afternoon
=
12 x
25 =
210 Total number of wafers at first = 10 u
Number of wafers left = 2 u
2 u = 12
1 u = 12 ÷ 2 = 6
Number of wafers sold
= 10 u - 2 u
= 8 u
= 8 x 6
= 48
(b)
Number of sets of 4 wafers
= 48 ÷ 4
= 12
Amount that Charlie received from the wafers he sold
= 12 x 3.90
= $46.80
Answer(s): (a) 48; (b) $46.80
