Zane sold
35 of the cookies he made in the afternoon and half of the remainder in the evening. He had 8 cookies left unsold.
- How many cookies did he sell altogether?
- If he sold 4 cookies for $4.20, how much did he receive from the cookies he sold?
(a)
Fraction of the cookies left after selling in the morning
= 1 -
35 =
25 Fraction of the remaining cookies left after selling in the afternoon
= 1 -
12 =
12 Fraction of the cookies left after selling in the afternoon
=
12 x
25 =
210 Total number of cookies at first = 10 u
Number of cookies left = 2 u
2 u = 8
1 u = 8 ÷ 2 = 4
Number of cookies sold
= 10 u - 2 u
= 8 u
= 8 x 4
= 32
(b)
Number of sets of 4 cookies
= 32 ÷ 4
= 8
Amount that Zane received from the cookies he sold
= 8 x 4.20
= $33.60
Answer(s): (a) 32; (b) $33.60
