Vanessa spent
611 of her money on 3 tarts and 9 shortbreads. If each tart costs five times as much as a shortbread, how many shortbreads could Vanessa buy with the rest of her money?
| |
Tarts |
Shortbreads |
| Number |
3 |
9 |
| Value |
5 u |
1 u |
| Total value |
15 u |
9 u |
Cost of 1 shortbread = 1 u
Cost of 1 tart = 5 u
Total cost of 3 tarts and 9 shortbreads
= 3 x 5 u + 9 x 1 u
= 24 u
Fraction of Vanessa's money left
= 1 -
611 =
511611 of Vanessa's money = 24 u
111 of Vanessa's money = 24 u ÷ 6 = 4 u
511 of Vanessa's money = 4 u x 5 = 20 u
Number of shortbreads that Vanessa could buy
= 20 u ÷ 1 u
= 20
Answer(s): 20
