Jean spent
34 of her money on some tarts and
37 of her remaining money on 7 wafers. Each wafer cost thrice as much as a tart. How many tarts did she buy?
Tarts |
Remaining money |
3x7 |
1x7 |
|
7 Wafers |
Left |
|
3x1 |
4x1 |
21 u |
3 u |
4 u |
Cost of 1 wafer = Cost of 3 tarts
(x7)Cost of 7 wafers = Cost of 21 tarts
3 u = 21
1 u = 21 ÷ 3 = 7
Number of tarts that Jean bought
= 21 u
= 21 x 7
= 147
Answer(s): 147