Mark sold
25 of the cupcakes he made in the morning and half of the remainder in the evening. He had 18 cupcakes left unsold.
- How many cupcakes did he sell altogether?
- If he sold 2 cupcakes for $3.70, how much did he receive from the cupcakes he sold?
(a)
Fraction of the cupcakes left after selling in the morning
= 1 -
25 =
35 Fraction of the remaining cupcakes left after selling in the afternoon
= 1 -
12 =
12 Fraction of the cupcakes left after selling in the afternoon
=
12 x
35 =
310 Total number of cupcakes at first = 10 u
Number of cupcakes left = 3 u
3 u = 18
1 u = 18 ÷ 3 = 6
Number of cupcakes sold
= 10 u - 3 u
= 7 u
= 7 x 6
= 42
(b)
Number of sets of 2 cupcakes
= 42 ÷ 2
= 21
Amount that Mark received from the cupcakes he sold
= 21 x 3.70
= $77.70
Answer(s): (a) 42; (b) $77.70
