PSLE A company offered 180 juicers at 20% 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 180 juicers were sold in the first four days of the sale?
- During the sale, the discounted price of the juicers was $112. After the sale, the remaining juicers were sold without discount. What was the total amount of money collected from selling all 180 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 = 90
Number of juicers that were sold for the first four days
= 180 - 90
= 90
Percentage of juicers that were sold for the first four days
=
90180 x 100%
= 50%
(c)
Number of juicers that were left at the end of the sale = 50
Number of juicers that were sold during the sale
= 180 - 50
= 130
Total amount that collected from the juicers sold
= 130 x 112
= $14560
Price of each juicer after 20% discount
= 100% - 20%
= 80%
80% of the price = 112
1% of the price = 112 ÷ 80 = 1.4
100% of the price = 100 x 1.4 = 140
Amount collected from selling the remaining juicers
= 50 x 140
= $7000
Total amount collected from selling all the 180 juicers
= 14560 + 7000
= $21560
Answer(s): (a) Day 3; (b) 50%; (c) $21560