Diana spent
712 of her money on 10 macarons and 8 cupcakes. If each macaron costs twice as much as a cupcake, how many cupcakes could Diana buy with the rest of her money?
| |
Macarons |
Cupcakes |
| Number |
10 |
8 |
| Value |
2 u |
1 u |
| Total value |
20 u |
8 u |
Cost of 1 cupcake = 1 u
Cost of 1 macaron = 2 u
Total cost of 10 macarons and 8 cupcakes
= 10 x 2 u + 8 x 1 u
= 28 u
Fraction of Diana's money left
= 1 -
712 =
512712 of Diana's money = 28 u
112 of Diana's money = 28 u ÷ 7 = 4 u
512 of Diana's money = 4 u x 5 = 20 u
Number of cupcakes that Diana could buy
= 20 u ÷ 1 u
= 20
Answer(s): 20
