Cole sold
25 of the wafers he made in the morning and half of the remainder in the evening. He had 15 wafers left unsold.
- How many wafers did he sell altogether?
- If he sold 5 wafers for $1.50, 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 = 15
1 u = 15 ÷ 3 = 5
Number of wafers sold
= 10 u - 3 u
= 7 u
= 7 x 5
= 35
(b)
Number of sets of 5 wafers
= 35 ÷ 5
= 7
Amount that Cole received from the wafers he sold
= 7 x 1.50
= $10.50
Answer(s): (a) 35; (b) $10.50