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標題:

Math question

發問:

有冇人可以教我做以下的問題? A newspaper knows that 62% of the households in a town are subscribers. If 40 households are surveyed randomly, how many of these households should the newspaper expect to be subscribers?

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最佳解答:

EXPLANATION: 100 households has 62 subscribers. Now how many subscribers in 40 households? 100 : 40 = 62 : X X = 40 * 62 /100 X = 24.8 ~ 25

其他解答:

答案真是這樣ma? 不過非常感謝!!!

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