Albert sold
25 of the wafers he made in the morning and half of the remainder in the evening. He had 9 wafers left unsold.
- How many wafers did he sell altogether?
- If he sold 3 wafers for $2.90, 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 = 9
1 u = 9 ÷ 3 = 3
Number of wafers sold
= 10 u - 3 u
= 7 u
= 7 x 3
= 21
(b)
Number of sets of 3 wafers
= 21 ÷ 3
= 7
Amount that Albert received from the wafers he sold
= 7 x 2.90
= $20.30
Answer(s): (a) 21; (b) $20.30
