answer pleasw!!!!!十萬火急！！！！！

Cherry

2015-07-27 4:21 am

我想要mathematics in action bridge programme P6 S1既answer

唔該！
p.9（32，33）p.（31,32)p.39(27,28,29,30,31)p.57(16,17,18,19)

要題解和式和答案！！！！！

更新1:

要快，please！！！！！

更新2:

1.In a ferry pier,ferries set off for islands A ,B and C every 25,45 and 75 minutes respectively. At 10:00a.m.,ferries set off from the pier for all the three islands.when will they set off again at the same time if the ferry services end at 11:00p.m.every day?List all the possible cases.

回答 (3)

用戶18354

2015-08-06 4:23 am

無最佳解答

👍 0 👎 0

50418129

2015-07-29 7:00 pm

The L.C.M. of 25, 45, 75 is 225.
For every 225 minutes(i.e. 3 hours and 45 minutes) they will set off again at the same time.
All possible time: 1:45 p.m., 5:30 p.m., 9:15 p.m..

參考: knowledge

👍 0 👎 0

知足常樂

2015-07-27 4:25 am

請貼出題目，那麼大家就可以教你。

👍 0 👎 0