The line graph shows the number of newspapers sold at a store over a week.
- On which day was the store closed? Give the answer in short form. (Eg Mon)
- How many more newspapers were sold on Monday than on Friday?
- On which two days were 4100 newspapers sold altogether? Give the answer in short form. (Eg Mon, Tue)
- If 8830 newspapers were sold from Monday to Sunday in the week, how many newspapers were sold on Sunday?
(a)
The store is closed on Wednesday because there was no newspapers sold on that day.
(b)
Number of more newspapers sold on Monday than on Friday
= 1570 - 850
= 720
(c)
Only 1960 and 2140 are the only numbers that will give a sum of 4100.
So, the days are Tuesday and Saturday.
(d)
Total newspapers sold from Monday to Saturday
= 1570 + 1960 + 0 + 1870 + 850 + 2140
= 8390
Number of newspapers sold from Monday to Sunday
= 8830
Number of newspapers sold on Sunday
= 8830 - 8390
= 440
Answer(s): (a) Wed; (b) 720; (c) Tue, Sat; (d) 440