A sports shop had 300 cricket balls for sale. Each cricket ball is sold at $4. 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 4? Express your answer in its simplest form.
- If the shop decided to sell every 5 cricket balls at $16 from Day 5 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 4
= 300 - 70 - 70 - 90 - 65
= 5
Fraction of cricket balls left at the end of Day 4
=
5300=
160 (b)
Number of cricket balls sold from Day 5 to Day 6
= 70 + 80
= 150
Amount that it would collect if it sold the 150 cricket balls at the original price
= 150 x 4
= $600
Number of sets of 5 cricket balls
= 150 ÷ 5
= 30
Amount that it would collect if it sold the 150 cricket balls at every 5 cricket balls at $16
= 30 x 16
= $480
Amount that it would collect less from the sale of the cricket balls
= 600 - 480
= $120
Answer(s): (a)
160; (b) $120