Mary goes to school and returns home by bus or MTR. It is given that total fare for 3 bus trips is equal to 5 MTR trips.
Mary travelled by bus 4 times and by MTR 6 times to and from school last week. If the total bus fare was $38, find the MTR fare for each trip.
多謝解答` ovo
F1 maths 1題
2009-03-18 7:29 pm
回答 (4)
2009-03-18 7:43 pm
✔ 最佳答案
Let B be the bus fare and M be the MTR fare, then3B = 5M
Now, 4B = $38, that is
B=$38 / 4 = $9.5
Back to the start, that 3B = 5M,
we have 3 x $9.5 = 5M
and M = 3 x $9.5 / 5 = $5.7
The MTR fare for each trip is $5.7
2009-03-19 12:36 am
Let bus trips fare was $A,MTR trips fare was $B.
3A=5B
4A=38
A=9.5
B=5.7
Therefore bus trips fare was $9.5,MTR trips fare was $5.7 .
I hope I can help you.
3A=5B
4A=38
A=9.5
B=5.7
Therefore bus trips fare was $9.5,MTR trips fare was $5.7 .
I hope I can help you.
參考: My knowledge and your補充
2009-03-18 8:48 pm
先假設巴士一次費用係 X
再假設地鐵費用係 Y
3 bus trips is equal to 5 MTR trips.
SO
3X=5Y (1)
the total bus fare was $38
SO
4X=38 （2）即X=9.5
SO 3X9.5=5Y 即Y=5.7
SO the MTR fare for each trip is $5.7
再假設地鐵費用係 Y
3 bus trips is equal to 5 MTR trips.
SO
3X=5Y (1)
the total bus fare was $38
SO
4X=38 （2）即X=9.5
SO 3X9.5=5Y 即Y=5.7
SO the MTR fare for each trip is $5.7
2009-03-18 7:37 pm
先假設巴士一次費用係 X
再假設地鐵費用係 Y
"total fare for 3 bus trips is equal to 5 MTR trips."
所以 3X = 5Y
而 4 次巴士同六次地鐵加埋用0左 38 蚊
即係 4X + 6Y = 38
淨番0既, 自己試下 solve 啦 (tips 係一程巴士貴過地鐵 2 蚊)
再假設地鐵費用係 Y
"total fare for 3 bus trips is equal to 5 MTR trips."
所以 3X = 5Y
而 4 次巴士同六次地鐵加埋用0左 38 蚊
即係 4X + 6Y = 38
淨番0既, 自己試下 solve 啦 (tips 係一程巴士貴過地鐵 2 蚊)
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