Xav txog cov qhab nia uas tau txais hauv kev xeem thiab mam li muab faib los ntawm tag nrho cov qhab nia tau txais hauv kev xeem thiab muab faib nrog 100. Piv txwv li: Yog hais tias ib tug me nyuam tub tau 85 qhab nia ntawm 100 qhab nia, ces nws yuav ua li cas feem pua? Yog li, qhov feem pua ntawm cov qhab nia tau txais yog 85%.
Koj hloov 600 qhab nia rau feem pua li cas?
Ib feem pua yog tus lej uas tau pom nyob rau hauv nqe lus ntawm 100. Yuav kom pom qhov feem pua ntawm cov qhab nia tau, ib tus yuav tsum faib tag nrho cov qhab nia los ntawm cov qhab nia tau thiab tom qab ntawd muab cov txiaj ntsig nrog 100.
Koj pom 12 qhov qhab nia li cas?
12th cim feem pua ntawm lub laij lej
- Kauj Ruam 1: Txhawm rau xam 12 qhov qhab nia feem pua - thawj zaug faib cov qhab nia faib los ntawm qhov cim.
- Kauj Ruam 2: Tom qab ntawd, Muab tus nqi los ntawm 100.
- Kauj Ruam 3: Feem ntau 12th tawm ntawm qhov cim yog 1200.
- Kauj Ruam 4: Piv txwv, yog tus neeg tau qhab nia 910 ntawm 1200.
- Kauj Ruam 5: Li no, ((410/500)100)=75.83%
tus qauv ntawm feem pua yog dab tsi?
Percentage xam tau los ntawm kev faib tus nqi los ntawm tag nrho cov nqi, thiab ces muab qhov tshwm sim los ntawm 100. Cov mis siv los xam feem pua yog: (tus nqi/tag nrho tus nqi) × 100%.
Yuav ua li cas yog qhov yooj yim tshaj los xam feem pua?
Feem ntau, txoj hauv kev los txheeb xyuas qhov feem pua yog txhawm rau muab cov lej ntawm cov lus nug, lossis X, los ntawm daim ntawv lej ntawm tus lej.%. Txhawm rau txheeb xyuas daim foos lej ntawm ib feem pua, tsuas yog txav tus lej thib ob mus rau sab laug. Piv txwv li, daim ntawv zauv ntawm 10 feem pua yog 0.1.
