某次數(shù)學(xué)競(jìng)賽72人中有35%的同學(xué)獲得一等獎(jiǎng),有25%的同學(xué)獲二等獎(jiǎng),有40%的同學(xué)獲三等獎(jiǎng),一、二、三等獎(jiǎng)獲獎(jiǎng)人數(shù)分別是

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A.25,18,29;
B.23,19,30;
C.20,25,27;
D.23,21,28.

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某次數(shù)學(xué)競(jìng)賽72人中有35%的同學(xué)獲得一等獎(jiǎng),有25%的同學(xué)獲二等獎(jiǎng),有40%的同學(xué)獲三等獎(jiǎng),一、二、三等獎(jiǎng)獲獎(jiǎng)人數(shù)分別是


  1. A.
    25,18,29;
  2. B.
    23,19,30;
  3. C.
    20,25,27;
  4. D.
    23,21,28.

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