ON a ship,the amount of food there can supply 200adults for 25days or 500 children for 40days.If there are k tonnes of food on the ship.
if there are 500adults and 500children on the ship,how many days can the food supply last?
8+8+7=?
2007-06-10 2:33 am
回答 (7)
2007-06-10 7:50 pm
8+8+7
=8+8+7
=16+7
=23
=8+8+7
=16+7
=23
2007-06-10 2:45 am
8+8+7=23
(SW)
(SW)
2007-06-10 2:45 am
I think it should be: 25/2.5=10 days(for 500 adults)
40 days for 500 children
(10+40)/2=50/2=25days for 500 adults and 500 children onthe ship
2007-06-09 18:48:10 補充：
25/2.5=10 is better for → 25/(500/200)=25/2.5=10p.s. : 8+8+7=23
40 days for 500 children
(10+40)/2=50/2=25days for 500 adults and 500 children onthe ship
2007-06-09 18:48:10 補充：
25/2.5=10 is better for → 25/(500/200)=25/2.5=10p.s. : 8+8+7=23
2007-06-10 2:45 am
8+8+7
=16+7
=23
=16+7
=23
2007-06-10 2:41 am
500adults for 62.5 days , 500children for 40days .
2007-06-09 18:44:02 補充：
ans: 62.5 - 40 =22.5 =23( day )
2007-06-09 18:47:08 補充：
500adults for 62.5 days : 500/200 X 25 =62.3500children for 40days : 40The food can supply last 23 days .
2007-06-09 18:44:02 補充：
ans: 62.5 - 40 =22.5 =23( day )
2007-06-09 18:47:08 補充：
500adults for 62.5 days : 500/200 X 25 =62.3500children for 40days : 40The food can supply last 23 days .
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