A sports shop had 400 cricket balls for sale. Each cricket ball is sold at $2. At the end of each day, the number of cricket balls sold was recorded in the bar graph shown.
- What fraction of the total number of cricket balls was left at the end of Day 3? Express your answer in its simplest form.
- If the shop decided to sell every 5 cricket balls at $6 from Day 4 onwards, how much less would it collect from the sale of the cricket balls?
(a)
Number of cricket balls left at the end of Day 3
= 400 - 50 - 65 - 65
= 220
Fraction of cricket balls left at the end of Day 3
=
220400=
1120 (b)
Number of cricket balls sold from Day 4 to Day 6
= 100 + 75 + 95
= 270
Amount that it would collect if it sold the 270 cricket balls at the original price
= 270 x 2
= $540
Number of sets of 5 cricket balls
= 270 ÷ 5
= 54
Amount that it would collect if it sold the 270 cricket balls at every 5 cricket balls at $6
= 54 x 6
= $324
Amount that it would collect less from the sale of the cricket balls
= 540 - 324
= $216
Answer(s): (a)
1120; (b) $216