Feem pua nyob ib puag ncig peb - los ntawm 3.4% feem pua txhua hli mus rau 80% ntxhua khaub ncaws. Nws muaj txiaj ntsig kom paub txog feem pua, lawv txhais li cas, thiab yuav xam lawv li cas. Txhawm rau xam nws tsis yog qhov nyuaj li koj xav, thiab txoj hauv kev los laij nws yog qhia hauv qab no.
Kauj ruam
Txoj Kev 1 ntawm 3: Xam Tag Nrho Feem Pua
Kauj Ruam 1. Paub tias feem pua yog dab tsi
feem pua yog ib txoj hauv kev qhia tus lej raws li ib feem ntawm tag nrho. Txhawm rau suav qhov feem pua, peb saib tag nrho li 100%. Piv txwv li, koj muaj 10 txiv apples (= 100%). Yog tias koj noj 2 txiv apples, tom qab ntawd koj tau noj 2/10 x 100% = 20% ntawm koj cov txiv apples thiab qhov seem yog 80% ntawm koj cov txiv apples tag nrho.
Lub sij hawm "zoo meej" ua lus Askiv los ntawm Italis "ib xees" lossis Fabkis "ncuav ib xees", uas txhais tau tias "txhua puas"
Kauj Ruam 2. Txiav txim siab tus nqi tag nrho
Cia peb hais tias peb muaj lub khob uas muaj 1199 pob zeb liab thiab 485 pob zeb xiav, nqa tag nrho cov pob zeb pob zeb mus rau 1684. Hauv qhov no, 1684 yog tag nrho cov pob zeb marble hauv lub hub thiab sib npaug 100%.
Kauj Ruam 3. Nrhiav tus nqi koj xav hloov pauv mus rau feem pua
Cia peb hais tias peb xav paub feem pua ntawm lub khob ntim nrog 485 pob zeb xiav.
Kauj Ruam 4. Muab ob qho txiaj ntsig tso rau hauv daim foos
Hauv peb qhov piv txwv, peb yuav tsum paub tias feem pua yog 485 (tus naj npawb ntawm pob zeb xiav) ntawm 1684 (tag nrho cov pob zeb pob zeb). Yog li, qhov feem rau rooj plaub no yog 485/1684.
Kauj Ruam 5. Hloov cov feem mus ua zauv zauv
Txhawm rau hloov 485/1684 rau cov lej zauv, faib 485 los ntawm 1684 ua 0.288.
Kauj Ruam 6. Hloov daim ntawv zauv zauv rau feem pua daim
Muab cov txiaj ntsig tau los ntawm kev siv cov theem saum toj no los ntawm 100. Rau qhov piv txwv no, 0, 288 suav nrog 100 sib npaug 28, 8 lossis 28, 8%.
Ib txoj hauv kev yooj yim los ua lej los ntawm 100 yog txav cov zauv mus rau txoj cai ob qhov chaw.
Txoj Kev 2 ntawm 3: Hloov Feem Pua Feem
Kauj Ruam 1. Vim li cas hloov daim ntawv ntawm feem pua?
Qee zaum koj tau muab feem pua ntawm qee yam thiab xav paub qhov feem pua tus nqi. Piv txwv li, xam cov se, cov lus qhia, thiab cov paj laum ntawm cov nyiaj qiv.
Kauj Ruam 2. Paub tus nqi pib
Piv txwv tias koj qiv nyiaj los ntawm tus phooj ywg uas tab tom yuav them paj. Thawj qhov koj qiv yog $ 15 thiab tus paj laum yog 3% hauv ib hnub. Cov no yog ob tus lej koj yuav tsum tau ua qhov kev suav.
Kauj Ruam 3. Hloov feem pua mus rau zauv
Sib npaug feem pua los ntawm 0.01 lossis los ntawm kev txav tus lej mus rau sab laug ob qhov chaw. Qhov no hloov 3% rau 0.03.
Kauj Ruam 4. Muab tus lej qub los zauv zauv tshiab
Hauv qhov no, sib npaug 15 los ntawm 0.03 kom tau 0.45. Hauv qhov piv txwv no, $ 0.45 yog tus nqi paj uas tau them txhua hnub yog tias koj tsis them koj tus phooj ywg.
Txoj Kev 3 ntawm 3: Xam Nyiaj Txiag
Kauj Ruam 1. Paub tus nqi thiab tus nqi luv nqi
Nov yog txoj hauv kev yooj yim los laij tus nqi luv nqi, tab sis koj yuav tsum ua kom ntseeg tau tias feem pua raug. Txheeb xyuas ntau npaum li cas luv nqi rau cov khoom koj xav yuav.
Kauj Ruam 2. Nrhiav qhov sib txawv ntawm qhov feem pua luv nqi
Qhov sib txawv ntawm qhov feem pua yog 100% rho tawm feem pua uas koj tau suav. Yog tias koj xav yuav khaub ncaws nrog txo 30%, qhov sib txawv yog 70%.
Kauj Ruam 3. Hloov qhov hloov pauv feem pua mus rau zauv
Txhawm rau hloov qhov feem pua mus rau zauv, muab zauv los ntawm 0.01 lossis txav tus zauv ob qhov chaw mus rau sab laug. Hauv qhov piv txwv no, 70% dhau los ua 0.7.
Kauj Ruam 4. Muab tus nqi sib npaug los ntawm cov zauv tshiab
Yog tias lub tsho koj xav tau yog $ 20, muab 20 ntxiv 0.7 kom tau 14. Qhov no txhais tau tias lub tsho luv nqi rau $ 14.
