A sports shop had 400 squash balls for sale. Each squash ball is sold at $3. 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 5 squash balls at $13 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 - 95 - 70 - 75 - 65
= 95
Fraction of squash balls left at the end of Day 4
=
95400=
1980 (b)
Number of squash balls sold from Day 5 to Day 6
= 55 + 100
= 155
Amount that it would collect if it sold the 155 squash balls at the original price
= 155 x 3
= $465
Number of sets of 5 squash balls
= 155 ÷ 5
= 31
Amount that it would collect if it sold the 155 squash balls at every 5 squash balls at $13
= 31 x 13
= $403
Amount that it would collect less from the sale of the squash balls
= 465 - 403
= $62
Answer(s): (a)
1980; (b) $62