Irene spent
56 of her money on some muffins and
23 of her remaining money on 9 croissants. Each croissant cost twice as much as a muffin. How many muffins did she buy?
Muffins |
Remaining money |
5x3 |
1x3 |
|
9 Croissants |
Left |
|
2x1 |
1x1 |
15 u |
2 u |
1 u |
Cost of 1 croissant = Cost of 2 muffins
(x9)Cost of 9 croissants = Cost of 18 muffins
2 u = 18
1 u = 18 ÷ 2 = 9
Number of muffins that Irene bought
= 15 u
= 15 x 9
= 135
Answer(s): 135