[計量] 請教一題數學
OG p.245的第30題:
A certain recipe makes enough batter for exactly 8 circular
pancakes that are each 10 inches in diameter. How many circular
pancakes, each 5 inches in diameter and of the same thickness
as the 10-inch pancakes, should the recipe make?
(A)4
(B)16
(C)24
(D)32
(E)40
答案是D,可是我怎麼算都是B(16個)耶,
希望各位來幫我解答一下> <...thx
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推
10/08 00:50, , 1F
10/08 00:50, 1F
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10/08 00:51, , 2F
10/08 00:51, 2F
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10/08 00:51, , 3F
10/08 00:51, 3F
推
10/08 01:07, , 4F
10/08 01:07, 4F
推
10/08 01:10, , 5F
10/08 01:10, 5F
→
10/08 01:57, , 6F
10/08 01:57, 6F
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10/08 02:43, , 7F
10/08 02:43, 7F
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