The line graph shows the number of sandwiches sold in a week.
- How many more sandwiches were sold on Wednesday than on Friday?
- On which day was the number of sandwiches sold thrice as many as the number of sandwiches sold on Thursday? Give your answer in this format. (Eg Mon)
(a)
Number of sandwiches sold on Monday = 80
Number of sandwiches sold on Tuesday = 10
Number of sandwiches sold on Wednesday = 120
Number of sandwiches sold on Thursday = 30
Number of sandwiches sold on Friday = 70
Number of sandwiches sold on Saturday = 50
Number of sandwiches sold on Sunday = 90
Number of more sandwiches sold on Wednesday than on Friday
= 120 - 70
= 50
(b)
Number of sandwiches sold on Thursday = 30
Number of sandwiches sold in a day to be thrice as many as the number of sandwiches sold on Thursday
= 3 x 30
= 90
On Sunday, the number of sandwiches sold was thrice as many as the number of sandwiches sold on Thursday.
Answer(s): (a) 50; (b) Sun