Muffins are sold in Marion Pastry Shop at the prices as shown:
1 cranberry muffin $1.60
1 banana muffin $1.40
MrsSeah bought 10 more banana muffins than cranberry muffins from this pastry shop. She paid $20 in total. How many muffins did Mrs Seah buy altogether?
|
Cranberry muffins |
Banana muffins |
Total muffins |
Number |
1 u |
1 u + 10 |
|
Value |
1.60 |
1.40 |
|
Total value |
1.6 u |
1.4 u + 14 |
3 u + 14 |
Amount that Mrs Seah paid for cranberry muffins
= 1 u x 1.60
= 1.6 u
Amount that Mrs Seah paid for banana muffins
= 1.40 x (1 u + 10)
= 1.4 u + 14
Total amount that Mrs Seah paid
= 1.6 u + 1.4 u + 14
= 3 u + 14
3 u + 14= 20
3 u = 20 - 14
3 u = 6
1 u = 6 ÷ 3 = 2
Number of muffins that Mrs Seah bought altogether
= 2 u + 10
= 2 x 2 + 10
= 4 + 10
= 14
Answer(s): 14