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 3230 newspapers sold altogether? Give the answer in short form. (Eg Mon, Tue)
- If 8420 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
= 1560 - 860
= 700
(c)
Only 1440 and 1790 are the only numbers that will give a sum of 3230.
So, the days are Tuesday and Saturday.
(d)
Total newspapers sold from Monday to Saturday
= 1560 + 1440 + 0 + 1220 + 860 + 1790
= 6870
Number of newspapers sold from Monday to Sunday
= 8420
Number of newspapers sold on Sunday
= 8420 - 6870
= 1550
Answer(s): (a) Wed; (b) 700; (c) Tue, Sat; (d) 1550