PSLE A company offered 200 toasters at 30% 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 200 toasters were sold in the first four days of the sale?
- During the sale, the discounted price of the toasters was $112. After the sale, the remaining toasters were sold without discount. What was the total amount of money collected from selling all 200 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 = 100
Number of toasters that were sold for the first four days
= 200 - 100
= 100
Percentage of toasters that were sold for the first four days
=
100200 x 100%
= 50%
(c)
Number of toasters that were left at the end of the sale = 40
Number of toasters that were sold during the sale
= 200 - 40
= 160
Total amount that collected from the toasters sold
= 160 x 112
= $17920
Price of each toaster after 30% discount
= 100% - 30%
= 70%
70% of the price = 112
1% of the price = 112 ÷ 70 = 1.6
100% of the price = 100 x 1.6 = 160
Amount collected from selling the remaining toasters
= 40 x 160
= $6400
Total amount collected from selling all the 200 toasters
= 17920 + 6400
= $24320
Answer(s): (a) Day 3; (b) 50%; (c) $24320