A sports shop had 500 cricket balls for sale. Each cricket ball is sold at $5. 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 3 cricket balls at $13 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
= 500 - 42 - 48 - 57
= 353
Fraction of cricket balls left at the end of Day 3
=
353500=
353500 (b)
Number of cricket balls sold from Day 4 to Day 6
= 45 + 60 + 30
= 135
Amount that it would collect if it sold the 135 cricket balls at the original price
= 135 x 5
= $675
Number of sets of 3 cricket balls
= 135 ÷ 3
= 45
Amount that it would collect if it sold the 135 cricket balls at every 3 cricket balls at $13
= 45 x 13
= $585
Amount that it would collect less from the sale of the cricket balls
= 675 - 585
= $90
Answer(s): (a)
353500; (b) $90