PSLE A company offered 80 toasters at 40% discount during a 7-day sale. The line graph shows the number of toasters left unsold at the end of each day.
- On which day was the most number of toasters sold? Give your answer in this format. (Eg Day 1)
- What percentage of the 80 toasters were sold in the first four days of the sale?
- During the sale, the discounted price of the toasters was $78. After the sale, the remaining toasters were sold without discount. What was the total amount of money collected from selling all 80 toasters?
(a)
The steepest line is from Day 2 to Day 3.
On Day 3, the most number of toasters was sold.
(b)
Number of toasters that were left at Day 4 = 32
Number of toasters that were sold for the first four days
= 80 - 32
= 48
Percentage of toasters that were sold for the first four days
=
4880 x 100%
= 60%
(c)
Number of toasters that were left at the end of the sale = 16
Number of toasters that were sold during the sale
= 80 - 16
= 64
Total amount that collected from the toasters sold
= 64 x 78
= $4992
Price of each toaster after 40% discount
= 100% - 40%
= 60%
60% of the price = 78
1% of the price = 78 ÷ 60 = 1.3
100% of the price = 100 x 1.3 = 130
Amount collected from selling the remaining toasters
= 16 x 130
= $2080
Total amount collected from selling all the 80 toasters
= 4992 + 2080
= $7072
Answer(s): (a) Day 3; (b) 60%; (c) $7072