PSLE A company offered 100 blenders at 10% discount during a 7-day sale. The line graph shows the number of blenders left unsold at the end of each day.
- On which day was the most number of blenders sold? Give your answer in this format. (Eg Day 1)
- What percentage of the 100 blenders were sold in the first five days of the sale?
- During the sale, the discounted price of the blenders was $108. After the sale, the remaining blenders were sold without discount. What was the total amount of money collected from selling all 100 blenders?
(a)
The steepest line is from Day 1 to Day 2.
On Day
2, the most number of blenders was sold.
(b)
Number of blenders that were left at Day
5 = 40 Number of blenders that were sold for the first five days = 100 - 40 = 60 Percentage of blenders that were sold for the first five days
=
60100 x 100%
= 60%
(c)
Number of blenders that were left at the end of the sale = 10
Number of blenders that were sold during the sale
= 100 - 10
= 90
Total amount that collected from the blenders sold
= 90 x 108
= $9720
Price of each blender after 10% discount
= 100% - 10%
= 90%
90% of the price = 108
1% of the price = 108 ÷ 90 = 1.2
100% of the price = 100 x 1.2 = 120
Amount collected from selling the remaining blenders
= 10 x 120
= $1200
Total amount collected from selling all the 100 blenders
= 9720 + 1200
= $10920
Answer(s): (a) Day
2; (b) 60%; (c) $10920