A sports shop had 400 squash balls for sale. Each squash ball is sold at $2. At the end of each day, the number of squash balls sold was recorded in the bar graph shown.
- What fraction of the total number of squash balls was left at the end of Day 4? Express your answer in its simplest form.
- If the shop decided to sell every 4 squash balls at $4 from Day 5 onwards, how much less would it collect from the sale of the squash balls?
(a)
Number of squash balls left at the end of Day 4
= 400 - 60 - 60 - 48 - 40
= 192
Fraction of squash balls left at the end of Day 4
=
192400=
1225 (b)
Number of squash balls sold from Day 5 to Day 6
= 68 + 52
= 120
Amount that it would collect if it sold the 120 squash balls at the original price
= 120 x 2
= $240
Number of sets of 4 squash balls
= 120 ÷ 4
= 30
Amount that it would collect if it sold the 120 squash balls at every 4 squash balls at $4
= 30 x 4
= $120
Amount that it would collect less from the sale of the squash balls
= 240 - 120
= $120
Answer(s): (a)
1225; (b) $120