Buns are sold in Jade Bakery at the prices as shown:
1 blueberry bun $2.60
1 vanilla bun $1.30
MrsSeah bought 8 more vanilla buns than blueberry buns from this bakery. She paid $26 in total. How many buns did Mrs Seah buy altogether?
|
Blueberry buns |
Vanilla buns |
Total buns |
Number |
1 u |
1 u + 8 |
|
Value |
2.60 |
1.30 |
|
Total value |
2.6 u |
1.3 u + 10.4 |
3.9 u + 10.4 |
Amount that Mrs Seah paid for blueberry buns
= 1 u x 2.60
= 2.6 u
Amount that Mrs Seah paid for vanilla buns
= 1.30 x (1 u + 8)
= 1.3 u + 10.4
Total amount that Mrs Seah paid
= 2.6 u + 1.3 u + 10.4
= 3.9 u + 10.4
3.9 u + 10.4= 26
3.9 u = 26 - 10.4
3.9 u = 15.6
1 u = 15.6 ÷ 3.9 = 4
Number of buns that Mrs Seah bought altogether
= 2 u + 8
= 2 x 4 + 8
= 8 + 8
= 16
Answer(s): 16