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 $30. 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 = 40
Number of juicers that were sold for the first four days
= 80 - 40
= 40
Percentage of juicers that were sold for the first four days
=
4080 x 100%
= 50%
(c)
Number of juicers that were left at the end of the sale = 15
Number of juicers that were sold during the sale
= 80 - 15
= 65
Total amount that collected from the juicers sold
= 65 x 30
= $1950
Price of each juicer after 40% discount
= 100% - 40%
= 60%
60% of the price = 30
1% of the price = 30 ÷ 60 = 0.5
100% of the price = 100 x 0.5 = 50
Amount collected from selling the remaining juicers
= 15 x 50
= $750
Total amount collected from selling all the 80 juicers
= 1950 + 750
= $2700
Answer(s): (a) Day 3; (b) 50%; (c) $2700