PSLE A company offered 180 blenders at 40% 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 180 blenders were sold in the first five days of the sale?
- During the sale, the discounted price of the blenders was $30. After the sale, the remaining blenders were sold without discount. What was the total amount of money collected from selling all 180 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 = 90 Number of blenders that were sold for the first five days = 180 - 90 = 90 Percentage of blenders that were sold for the first five days
=
90180 x 100%
= 50%
(c)
Number of blenders that were left at the end of the sale = 40
Number of blenders that were sold during the sale
= 180 - 40
= 140
Total amount that collected from the blenders sold
= 140 x 30
= $4200
Price of each blender 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 blenders
= 40 x 50
= $2000
Total amount collected from selling all the 180 blenders
= 4200 + 2000
= $6200
Answer(s): (a) Day
2; (b) 50%; (c) $6200