Kimberly spent
57 of her money on 4 biscuits and 7 macarons. If each biscuit costs twice as much as a macaron, how many biscuits could Kimberly buy with the rest of her money?
| |
Biscuits |
Macarons |
| Number |
4 |
7 |
| Value |
2 u |
1 u |
| Total value |
8 u |
7 u |
Cost of 1 macaron = 1 u
Cost of 1 biscuit = 2 u
Total cost of 4 biscuits and 7 macarons
= 4 x 2 u + 7 x 1 u
= 15 u
Fraction of Kimberly's money left
= 1 -
57 =
2757 of Kimberly's money = 15 u
17 of Kimberly's money = 15 u ÷ 5 = 3 u
27 of Kimberly's money = 3 u x 2 = 6 u
Number of biscuits that Kimberly could buy
= 6 u ÷ 2 u
= 3
Answer(s): 3
