Rachel spent
29 of her money on 7 wafers and 4 tarts. If each wafer costs four times as much as a tart, how many wafers could Rachel buy with the rest of her money?
| |
Wafers |
Tarts |
| Number |
7 |
4 |
| Value |
4 u |
1 u |
| Total value |
28 u |
4 u |
Cost of 1 tart = 1 u
Cost of 1 wafer = 4 u
Total cost of 7 wafers and 4 tarts
= 7 x 4 u + 4 x 1 u
= 32 u
Fraction of Rachel's money left
= 1 -
29 =
7929 of Rachel's money = 32 u
19 of Rachel's money = 32 u ÷ 2 = 16 u
79 of Rachel's money = 16 u x 7 = 112 u
Number of wafers that Rachel could buy
= 112 u ÷ 4 u
= 28
Answer(s): 28
