Mrs Ong baked 8 cookies more than swiss rows. Each cookie needed 0.06 kg of flour while each pizza needed 0.6 kg of flour. She used 1.14 kg more flour for the swiss rows than for the cookies. How many cookies did Mrs Ong bake?
| |
Swiss Rows |
Cookies |
Difference |
| Number |
1 u |
1 u + 8 |
|
| Value |
0.6 |
0.06 |
|
| Total value |
0.6 u |
0.06 u + 0.48 |
0.54 u - 0.48 |
Amount of flour needed for cookies
= 0.06 x (1 u + 8)
= 0.06 u + 0.48
Amount of more flour for the swiss rows than the cookies
= 0.6 u - (0.06 u + 0.48)
= 0.6 u - 0.06 u - 0.48
= 0.54 u - 0.48
0.54 u - 0.48 = 1.14
0.54 u = 1.14 + 0.48
0.54 u = 1.62
1 u = 1.62 ÷ 0.54 = 3
Number of cookies baked
= 1 u + 8
= 3 + 8
= 11
Answer(s): 11
