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 4? Express your answer in its simplest form.
- If the shop decided to sell every 3 cricket balls at $4 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
= 400 - 30 - 45 - 54 - 36
= 235
Fraction of cricket balls left at the end of Day 4
=
235400=
4780 (b)
Number of cricket balls sold from Day 5 to Day 6
= 54 + 60
= 114
Amount that it would collect if it sold the 114 cricket balls at the original price
= 114 x 2
= $228
Number of sets of 3 cricket balls
= 114 ÷ 3
= 38
Amount that it would collect if it sold the 114 cricket balls at every 3 cricket balls at $4
= 38 x 4
= $152
Amount that it would collect less from the sale of the cricket balls
= 228 - 152
= $76
Answer(s): (a)
4780; (b) $76