Cathy spent
29 of her money on 8 biscuits and 10 scones. If each biscuit costs twice as much as a scone, how many scones could Cathy buy with the rest of her money?
| |
Biscuits |
Scones |
| Number |
8 |
10 |
| Value |
2 u |
1 u |
| Total value |
16 u |
10 u |
Cost of 1 scone = 1 u
Cost of 1 biscuit = 2 u
Total cost of 8 biscuits and 10 scones
= 8 x 2 u + 10 x 1 u
= 26 u
Fraction of Cathy's money left
= 1 -
29 =
7929 of Cathy's money = 26 u
19 of Cathy's money = 26 u ÷ 2 = 13 u
79 of Cathy's money = 13 u x 7 = 91 u
Number of scones that Cathy could buy
= 91 u ÷ 1 u
= 91
Answer(s): 91
