Oscar sold
25 of the shortbreads he made in the morning and half of the remainder in the evening. He had 12 shortbreads left unsold.
- How many shortbreads did he sell altogether?
- If he sold 4 shortbreads for $4.50, how much did he receive from the shortbreads he sold?
(a)
Fraction of the shortbreads left after selling in the morning
= 1 -
25 =
35 Fraction of the remaining shortbreads left after selling in the afternoon
= 1 -
12 =
12 Fraction of the shortbreads left after selling in the afternoon
=
12 x
35 =
310 Total number of shortbreads at first = 10 u
Number of shortbreads left = 3 u
3 u = 12
1 u = 12 ÷ 3 = 4
Number of shortbreads sold
= 10 u - 3 u
= 7 u
= 7 x 4
= 28
(b)
Number of sets of 4 shortbreads
= 28 ÷ 4
= 7
Amount that Oscar received from the shortbreads he sold
= 7 x 4.50
= $31.50
Answer(s): (a) 28; (b) $31.50
