这么牛逼，请求解：

$1 mass=6.3g

50￠ mass=7.29g

20￠ mass=4.5g

10￠ mass=2.9g

5￠ mass=1.9g

the total mass of 48 one-dollar, fifty-cent， twenty-cent， 10￠ and 5￠ coins is 252.47g. How many of each type of coins are there?

同样条件：
the total mass of 48 one-dollar, fifty-cent， twenty-cent， 10￠ and 5￠ coins is 241.48g. How many of each type of coins are there?



 

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• 这明显不是给我们小学程度的人的题 -臭鼬，花花的- ♀ (0 bytes) () 08/14/2013 postreply 23:10:49