Xuan spent
45 of her money on some cookies and
25 of her remaining money on 6 tarts. Each tart cost four times as much as a cookie. How many cookies did she buy?
Cookies |
Remaining money |
4x5 |
1x5 |
|
6 Tarts |
Left |
|
2x1 |
3x1 |
20 u |
2 u |
3 u |
Cost of 1 tart = Cost of 4 cookies
(x6)Cost of 6 tarts = Cost of 24 cookies
2 u = 24
1 u = 24 ÷ 2 = 12
Number of cookies that Xuan bought
= 20 u
= 20 x 12
= 240
Answer(s): 240