Esther spent
34 of her money on some cupcakes and
37 of her remaining money on 7 macarons. Each macaron cost thrice as much as a cupcake. How many cupcakes did she buy?
Cupcakes |
Remaining money |
3x7 |
1x7 |
|
7 Macarons |
Left |
|
3x1 |
4x1 |
21 u |
3 u |
4 u |
Cost of 1 macaron = Cost of 3 cupcakes
(x7)Cost of 7 macarons = Cost of 21 cupcakes
3 u = 21
1 u = 21 ÷ 3 = 7
Number of cupcakes that Esther bought
= 21 u
= 21 x 7
= 147
Answer(s): 147