PSLE A company offered 80 juicers at 10% 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 $162. 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 = 32
Number of juicers that were sold for the first four days
= 80 - 32
= 48
Percentage of juicers that were sold for the first four days
=
4880 x 100%
= 60%
(c)
Number of juicers that were left at the end of the sale = 12
Number of juicers that were sold during the sale
= 80 - 12
= 68
Total amount that collected from the juicers sold
= 68 x 162
= $11016
Price of each juicer after 10% discount
= 100% - 10%
= 90%
90% of the price = 162
1% of the price = 162 ÷ 90 = 1.8
100% of the price = 100 x 1.8 = 180
Amount collected from selling the remaining juicers
= 12 x 180
= $2160
Total amount collected from selling all the 80 juicers
= 11016 + 2160
= $13176
Answer(s): (a) Day 3; (b) 60%; (c) $13176