Winnie spent
34 of her money on some tarts and
34 of her remaining money on 9 cookies. Each cookie cost four times as much as a tart. How many tarts did she buy?
Tarts |
Remaining money |
3x4 |
1x4 |
|
9 Cookies |
Left |
|
3x1 |
1x1 |
12 u |
3 u |
1 u |
Cost of 1 cookie = Cost of 4 tarts
(x9)Cost of 9 cookies = Cost of 36 tarts
3 u = 36
1 u = 36 ÷ 3 = 12
Number of tarts that Winnie bought
= 12 u
= 12 x 12
= 144
Answer(s): 144