數學題 : 斤兩

3 catties = 4 lbs
2.2 lbs = 1 Kg
so 3 catties = (4/2.2) Kg
1 catty = 4/6.6 Kg = 0.606 Kg = 606 grams.
1 tael = 1/16 catty = 0.606/16 = 0.0379 Kg = 37.9 grams.

1斤=0.604789302293kg 1kg=1000g
=604.789302293g

1兩=0.377994000039kg
=37.7994000039g


001既答案進左位,誤差都5算大,是可以接受的
而002的答案....1斤=16兩 2斤=36兩?..
16x2會=36?
16x2=38

1公斤=2斤, 1斤=0.5kg
1斤=16兩,1公斤=2斤=36兩
1兩=1/36公斤=0.0277777kg

2010-01-07 10:37:23 補充：
= = sorry!! 之前個d錯左...呢個先岩 - -
1公斤=2斤, 1斤=0.5kg
1斤=16兩,1公斤=2斤=32兩
1兩=1/32公斤=0.03125kg