Cathy spent
712 of her money on 10 biscuits and 6 cupcakes. If each biscuit costs five times as much as a cupcake, how many biscuits could Cathy buy with the rest of her money?
| |
Biscuits |
Cupcakes |
| Number |
10 |
6 |
| Value |
5 u |
1 u |
| Total value |
50 u |
6 u |
Cost of 1 cupcake = 1 u
Cost of 1 biscuit = 5 u
Total cost of 10 biscuits and 6 cupcakes
= 10 x 5 u + 6 x 1 u
= 56 u
Fraction of Cathy's money left
= 1 -
712 =
512712 of Cathy's money = 56 u
112 of Cathy's money = 56 u ÷ 7 = 8 u
512 of Cathy's money = 8 u x 5 = 40 u
Number of biscuits that Cathy could buy
= 40 u ÷ 5 u
= 8
Answer(s): 8
