Eva bought 5 biscuits more than scones. Each biscuit cost $0.60 while each scone cost $2.60. Given that she spent $25.40 in total, how many scones did Eva buy?
| |
Scones |
Biscuits |
Total |
| Number |
1 u |
1 u + 5 |
|
| Value |
$2.60 |
$0.60 |
|
| Total value |
2.6 u |
0.6 u + 3 |
0.6 u + 3 |
Amount that Eva paid for the scones
= 1 u x 2.60
= 2.6 u
Amount that Eva paid for biscuits
= 0.6 x (1 u + 5)
= 0.6 u + 3
Total amount that Eva paid
= 2.6 u + 0.6 u + 3
= 3.2 u + 3
3.2 u + 3 = 25.4
3.2 u = 25.4 - 3
3.2 u = 22.4
1 u = 22.4 ÷ 3.2 = 7
Number of scones that Eva bought
= 1 u
= 7
Answer(s): 7
