Pierre sold
25 of the wafers he made in the afternoon and half of the remainder in the evening. He had 12 wafers left unsold.
- How many wafers did he sell altogether?
- If he sold 4 wafers for $1.80, how much did he receive from the wafers he sold?
(a)
Fraction of the wafers left after selling in the morning
= 1 -
25 =
35 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
35 =
310 Total number of wafers at first = 10 u
Number of wafers left = 3 u
3 u = 12
1 u = 12 ÷ 3 = 4
Number of wafers sold
= 10 u - 3 u
= 7 u
= 7 x 4
= 28
(b)
Number of sets of 4 wafers
= 28 ÷ 4
= 7
Amount that Pierre received from the wafers he sold
= 7 x 1.80
= $12.60
Answer(s): (a) 28; (b) $12.60
