Lucy spent
710 of her money on 10 cupcakes and 8 muffins. If each cupcake costs twice as much as a muffin, how many cupcakes could Lucy buy with the rest of her money?
| |
Cupcakes |
Muffins |
| Number |
10 |
8 |
| Value |
2 u |
1 u |
| Total value |
20 u |
8 u |
Cost of 1 muffin = 1 u
Cost of 1 cupcake = 2 u
Total cost of 10 cupcakes and 8 muffins
= 10 x 2 u + 8 x 1 u
= 28 u
Fraction of Lucy's money left
= 1 -
710 =
310710 of Lucy's money = 28 u
110 of Lucy's money = 28 u ÷ 7 = 4 u
310 of Lucy's money = 4 u x 3 = 12 u
Number of cupcakes that Lucy could buy
= 12 u ÷ 2 u
= 6
Answer(s): 6
