PSLE A company offered 100 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 100 juicers were sold in the first five days of the sale?
- During the sale, the discounted price of the juicers was $32. After the sale, the remaining juicers were sold without discount. What was the total amount of money collected from selling all 100 juicers?
(a)
The steepest line is from Day 1 to Day 2.
On Day
2, the most number of juicers was sold.
(b)
Number of juicers that were left at Day
5 = 35 Number of juicers that were sold for the first five days = 100 - 35 = 65 Percentage of juicers that were sold for the first five days
=
65100 x 100%
= 65%
(c)
Number of juicers that were left at the end of the sale = 20
Number of juicers that were sold during the sale
= 100 - 20
= 80
Total amount that collected from the juicers sold
= 80 x 32
= $2560
Price of each juicer after 20% discount
= 100% - 20%
= 80%
80% of the price = 32
1% of the price = 32 ÷ 80 = 0.4
100% of the price = 100 x 0.4 = 40
Amount collected from selling the remaining juicers
= 20 x 40
= $800
Total amount collected from selling all the 100 juicers
= 2560 + 800
= $3360
Answer(s): (a) Day
2; (b) 65%; (c) $3360