PSLE A company offered 80 juicers at 40% discount during a 7-day sale. The line graph shows the number of juicers left unsold at the end of each day.
- On which day was the most number of juicers sold? Give your answer in this format. (Eg Day 1)
- What percentage of the 80 juicers were sold in the first four days of the sale?
- During the sale, the discounted price of the juicers was $54. After the sale, the remaining juicers were sold without discount. What was the total amount of money collected from selling all 80 juicers?
(a)
The steepest line is from Day 2 to Day 3.
On Day 3, the most number of juicers was sold.
(b)
Number of juicers that were left at Day 4 = 20
Number of juicers that were sold for the first four days
= 80 - 20
= 60
Percentage of juicers that were sold for the first four days
=
6080 x 100%
= 75%
(c)
Number of juicers that were left at the end of the sale = 5
Number of juicers that were sold during the sale
= 80 - 5
= 75
Total amount that collected from the juicers sold
= 75 x 54
= $4050
Price of each juicer after 40% discount
= 100% - 40%
= 60%
60% of the price = 54
1% of the price = 54 ÷ 60 = 0.9
100% of the price = 100 x 0.9 = 90
Amount collected from selling the remaining juicers
= 5 x 90
= $450
Total amount collected from selling all the 80 juicers
= 4050 + 450
= $4500
Answer(s): (a) Day 3; (b) 75%; (c) $4500