Vanessa spent
310 of her money on 7 puffs and 8 muffins. If each puff costs four times as much as a muffin, how many puffs could Vanessa buy with the rest of her money?
| |
Puffs |
Muffins |
| Number |
7 |
8 |
| Value |
4 u |
1 u |
| Total value |
28 u |
8 u |
Cost of 1 muffin = 1 u
Cost of 1 puff = 4 u
Total cost of 7 puffs and 8 muffins
= 7 x 4 u + 8 x 1 u
= 36 u
Fraction of Vanessa's money left
= 1 -
310 =
710310 of Vanessa's money = 36 u
110 of Vanessa's money = 36 u ÷ 3 = 12 u
710 of Vanessa's money = 12 u x 7 = 84 u
Number of puffs that Vanessa could buy
= 84 u ÷ 4 u
= 21
Answer(s): 21
