easy maths question
2007-07-01 6:37 am
If it takes 36 seconds to run from the 1st floor to the 4th floor, using the same speed, how long will it take to run from the 1st floor to the 8th floor?
回答 (5)
2007-07-01 6:42 am
✔ 最佳答案
one floor time=36/(4-1)=12
1to8=12x(8-1)
=84
the answer is 84seconds
2007-06-30 22:42:22 補充：
上面答案錯誤!!!
2007-07-01 8:31 pm
From the 1st floor tothe 4th floor needsto run 3 stairwaies,run from the 1st floor to 8th floor needs=36/3*7
=84
=84
2007-07-01 6:43 am
Time taken to run from the 1st to the 2nd floor:
36/3
=12s
Time taken to run from the 1st to the 8th floor:
7 x 12s
=84s
36/3
=12s
Time taken to run from the 1st to the 8th floor:
7 x 12s
=84s
參考: myself
2007-07-01 6:43 am
36/3*7=84 seconds
2007-07-01 6:41 am
36/4*8
=9*8
=72seconds
=9*8
=72seconds
收錄日期: 2021-04-13 00:42:54
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https://hk.answers.yahoo.com/question/index?qid=20070630000051KK04930