Vaidev sold
35 of the puffs he made in the morning and half of the remainder in the evening. He had 12 puffs left unsold.
- How many puffs did he sell altogether?
- If he sold 4 puffs for $1.70, how much did he receive from the puffs he sold?
(a)
Fraction of the puffs left after selling in the morning
= 1 -
35 =
25 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
25 =
210 Total number of puffs at first = 10 u
Number of puffs left = 2 u
2 u = 12
1 u = 12 ÷ 2 = 6
Number of puffs sold
= 10 u - 2 u
= 8 u
= 8 x 6
= 48
(b)
Number of sets of 4 puffs
= 48 ÷ 4
= 12
Amount that Vaidev received from the puffs he sold
= 12 x 1.70
= $20.40
Answer(s): (a) 48; (b) $20.40
