A sports shop had 400 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 $12 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 - 33 - 48 - 57
= 262
Fraction of cricket balls left at the end of Day 3
=
262400=
131200 (b)
Number of cricket balls sold from Day 4 to Day 6
= 33 + 42 + 54
= 129
Amount that it would collect if it sold the 129 cricket balls at the original price
= 129 x 5
= $645
Number of sets of 3 cricket balls
= 129 ÷ 3
= 43
Amount that it would collect if it sold the 129 cricket balls at every 3 cricket balls at $12
= 43 x 12
= $516
Amount that it would collect less from the sale of the cricket balls
= 645 - 516
= $129
Answer(s): (a)
131200; (b) $129