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 3980 newspapers sold altogether? Give the answer in short form. (Eg Mon, Tue)
- If 8170 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
= 1370 - 660
= 710
(c)
Only 1770 and 2210 are the only numbers that will give a sum of 3980.
So, the days are Tuesday and Saturday.
(d)
Total newspapers sold from Monday to Saturday
= 1370 + 1770 + 0 + 1290 + 660 + 2210
= 7300
Number of newspapers sold from Monday to Sunday
= 8170
Number of newspapers sold on Sunday
= 8170 - 7300
= 870
Answer(s): (a) Wed; (b) 710; (c) Tue, Sat; (d) 870