Tommy sold
25 of the puffs he made in the morning and half of the remainder in the afternoon. He had 18 puffs left unsold.
- How many puffs did he sell altogether?
- If he sold 2 puffs for $4.20, how much did he receive from the puffs he sold?
(a)
Fraction of the puffs left after selling in the morning
= 1 -
25 =
35 Fraction of the remaining puffs left after selling in the afternoon
= 1 -
12 =
12 Fraction of the puffs left after selling in the afternoon
=
12 x
35 =
310 Total number of puffs at first = 10 u
Number of puffs left = 3 u
3 u = 18
1 u = 18 ÷ 3 = 6
Number of puffs sold
= 10 u - 3 u
= 7 u
= 7 x 6
= 42
(b)
Number of sets of 2 puffs
= 42 ÷ 2
= 21
Amount that Tommy received from the puffs he sold
= 21 x 4.20
= $88.20
Answer(s): (a) 42; (b) $88.20