Tinaphunzitsidwa kupeza chiwerengero cha anthu kusukulu, koma popita nthawi, achikulire ambiri ali ndi luso lofunikira ili lotayika. Komabe, mukafuna kuwerengera kukula kwa kuchotsera m'sitolo kapena kudziwa kuchuluka kwa ndalama zomwe zikuyenera kuphatikizidwa mwezi uliwonse kuti zisonkhanitse maloto, mufunika njira yoyenera ya masamu.
"Tenga ndi Kuchita" kukuwonetsa njira zingapo zowerengera kuchuluka kwa kuchuluka komwe kungagwiritsidwe ntchito m'malo osiyanasiyana.
1. Momwe Mungapezere Zambiri za
Lamulo loyambira
Ngati mukufuna kuwerengera kuchuluka kwa nambala iliyonse, muyenera kugwiritsa ntchito formula p% * x = y, komwe:
- P% ndi kuchuluka kwake;
- X - nambala;
- Y - yankho lomaliza.
Mwachitsanzo, muyenera kuwerengera ndalama zomwe mudzasunga, kugula foni yam'manja, yomwe imawononga $ 250, ndikuchotsera 20%.
- Pankhaniyi, equation idzakhala motere: 20% * 250 = y.
- Kutulutsa malembedwe a masamu, muyenera kutembenuza 20% mu kachigawo. Ingogawa nambala 100 ndikuchotsa chizindikiro cha peresenti.
- Sinthani equation: 0.2 * 250 = y.
- Kuwerengetsa: 0.2 * 25 = 50. Yankho: Y = 50.
Kugula mafoni ndi 20% kuchotsera, mudzasunga $ 50.
Njira ina
Pali njira ina yowerengera kuchuluka komwe kungakhale kothandiza mukakhala kuti mulibe cholembera, koma sizinali zophweka kuthetsa malingaliro m'malingaliro. Tiyerekezere kuti mufunikanso kudziwa kuchuluka kwa 20% ya 250.
- Kuti muchite izi, mutha kuchulukitsa manambala, kugwetsa zeros: 2 * 25 = 50.
- Kenako muyenera kumvetsetsa zoyenera kuchita ndi zeros zomwe simunaganizire zikachulukidwe. Chifukwa chake, poyankha mutha kukhala 50; 0,5 kapena 500.
- Za manambala awiri omaliza, imodzi ndi yaying'ono kwambiri, ina ndi yokulirapo poyerekeza ndi 250. ndizosatheka kuti 0,5 ndi 500 ndi 20% ya 250. Chifukwa chake, yankho lolondola: 50.
Ngati mukukumana ndi manambala ovuta, mutha kusintha njirayi pang'ono. Tiyerekeze kuti muyenera kuwerengetsa 34% ya 45.
- Kufalitsa 34% pofika 30% ndi 4%.
- Equation imapezeka motere: (30% + 4%) * 45.
- Ganizirani izi: (30% + 4%) * 45 = 13.5 + 1.8 = 15.3.
Yankho: 15.3. Chitsanzo china chimawerengeredwa 40% ya 154.
- Yambani ndi kuwola 154 pa 150 ndi 4.
- Chifukwa chake, equation idzakhala motere: 40% * (150 + 4).
- Kuwerengera: 40% * (150 + 4) = 60 + 1,6 = 61.6.
Yankho: 61.6.
2. Momwe mungawerengere zomwe nambala ina imachokeranso
Ngati mukufuna kuwerengera, kodi ndi kuchuluka kwa kuchuluka kwa kuchuluka kwakukulu, muyenera kugwiritsa ntchito y / x = p% formulage. Mwachitsanzo, tingoyerekeza kuti tsiku lobadwa la $ 80 loperekedwa kwa inu patsiku la $ 80 ndipo tsopano mukufuna kuwerengera zomwe kuchuluka kwa zomwe mwapatsidwa.
- Pankhaniyi, y = 20, x = 80.
- Iquation imapezeka motere: 20/80 = p%.
- Kuwerengetsa: 20/80 = 0.25.
- Kenako muyenera kutembenuza kachigawo kakang'ono kwambiri. Kuti muchite izi, chulukitsani kuchuluka kwa zotsatira pa 100.
- Chifukwa chake, 0.25 * * 100 = 25%. Yankho: 25%.
Ndiye mwakhala 25% ya $ 80 yoperekedwa.
3. Momwe mungadziwire nambala ngati mukudziwa zomwe zikufanana ndi kuchuluka kwake
Ngati mukufuna kuwerengera, poganizira kuti mukudziwa zomwe zikufanana ndi kuchuluka kwake, muyenera kugwiritsa ntchito y / p% formula = X. mwachitsanzo, mudawona zotsatsa zomwe mungapulumutse $ 40, imeneyo Ndi, 20% ya mtengo wathunthu wa ulendo wa sabata, mukamachigulitsa nthawi yomweyo. Mukufuna kuphunzira mtengo wonse wa ulendowu. Popeza chilengezo sichinena chilichonse chokhudza izi, mwasankha kuwerengetsa nokha.
- Pankhaniyi, y = 40, p% = 20%, ndi x sizikudziwika.
- Equation imapezeka motere: 40/20% = x.
- Tembenuzani 20% mu kachigawo kakang'ono: 20/100 = 0.2.
- Equation ikhala motere: 40 / 0.2 = x.
- Ganizirani izi: 40 / 0,2 = 200. Yankho: 200.
Mtengo wokwanira wa ulendowu uli $ 200.