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 3? Express your answer in its simplest form.
- If the shop decided to sell every 5 cricket balls at $18 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
= 300 - 100 - 60 - 85
= 55
Fraction of cricket balls left at the end of Day 3
=
55300=
1160 (b)
Number of cricket balls sold from Day 4 to Day 6
= 95 + 70 + 60
= 225
Amount that it would collect if it sold the 225 cricket balls at the original price
= 225 x 4
= $900
Number of sets of 5 cricket balls
= 225 ÷ 5
= 45
Amount that it would collect if it sold the 225 cricket balls at every 5 cricket balls at $18
= 45 x 18
= $810
Amount that it would collect less from the sale of the cricket balls
= 900 - 810
= $90
Answer(s): (a)
1160; (b) $90