The table shows the number of staplers sold at a bookshop last week.
| |
Number of staplers sold |
| Per weekday |
5f |
| Saturday |
3f + 40 |
| Sunday |
3f - 10 |
- What was the total number of staplers sold last week? Express your answer in terms of f the simplest form.
- If f = 27, how many staplers were sold on Sunday?
(a)
Total staplers sold on weekdays
= 5 x 5
f = 25
f Total staplers sold on weekends
= 3
f + 40 + 3
f - 10
= 3
f + 3
f + 40 - 10
= 6
f + 30
Total staplers sold last week
= 25
f + 6
f + 30
= 31
f + 30
(b)
Number of staplers sold on Sunday
= (3 x 27) - 10
= 81 - 10
= 71
Answer(s): (a) 31
f + 30 or 30 + 31
f ; (b) 71
