Isu takadzidziswa kuwana chikamu chenhamba kuchikoro, asi nekufamba kwenguva, vakuru vazhinji vane hunyanzvi hwakakosha hwakarasika. Zvakangodaro, paunenge uchiedza kuverenga saizi yechiteshi muchitoro kana kuona huwandu hwemari inoda kutumirwa mwedzi wega wega kuti uunganidze kurota kuzororo, iwe uchada iyo chaiyo yemasvomhu formula.
"Tora uye uite" uchakuratidzai nzira dzinoverengeka dzekuverenga iyo muzana yehuwandu iyo inogona kushandiswa mumamiriro ezvinhu akasiyana.
1. Maitiro ekuwana chikamu che
Kutonga kwakakosha
Kana iwe uchida kuverenga chikamu che chero nhamba, iwe unofanirwa kushandisa iyo formula p% * x = y, kupi:
- P% inter muzana;
- X - nhamba;
- Y - Mhinduro yekupedzisira.
Semuenzaniso, iwe unofanirwa kuverenga kuti imarii yauchachengetedza, kutenga smartphone, iyo inodhura madhora mazana maviri nemashanu, ine 20% kuderedzwa.
- Mune ino kesi, equation ichave inotevera: 20% * 250 = y.
- Kuti ugadzire kuverenga kwemasvomhu, iwe unofanirwa kushandura 20% muchikamu chechinyorwa. Ingo chikamudza nhamba zana uye bvisa chiratidzo chezana.
- Chinja equation: 0.2 * 250 = y.
- Kuverenga: 0.2 * 250 = 50. Mhinduro: y = 50.
Kutenga smartphone ne 20% mutengo, iwe unozochengetedza madhora makumi mashanu.
Imwe nzira
Pane imwe nzira yekuverenga iyo muzana iyo inogona kubatsira kana iwe usina kuverenga kuverenga, asi zvaive zvisiri nyore kugadzirisa equation mundangariro. Ngatiti iwe zvakare unofanirwa kutsvaga kuti chii chinonzi 20% ye250.
- Kuti uite izvi, unogona kuwedzera huwandu, uchikanda zeros: 2 * 25 = 50.
- Ipapo iwe unofanirwa kunzwisisa zvekuita ne zeros kuti iwe hauna kufunga nezve kana uchiwedzera nhamba. Saka, mukupindura inogona kuve makumi mashanu; 0.5 kana 500.
- Of the 2 landles nhamba, imwe idiki kwazvo, imwe yacho yakakura ichienzaniswa nemakumi maviri nemashanu. Hazvigoneke kuti 0.5 uye 500 ndeye 20% ye250. Naizvozvo, mhinduro chaiyo: 50.
Kana iwe uchibata neakawanda manhamba akaoma, unogona kuchinja nzira iyi zvishoma. Ngatiti iwe unofanirwa kuverenga makumi matatu neshanu muzana e45.
- Pararira 34% ne30% uye 4%.
- Iyo equation inowanikwa mune yakadai: (30% + 4%) * 45.
- Funga nezve: (30% + 4%) * 45 = 13.5 + 1.8 = 15.3.
Mhinduro: 15.3. Mumwe muenzaniso unoverengwa 40% ye154.
- Tanga nekuora kwechido 154 pa150 uye 4.
- Saka, equation ichava seinotevera: 40% * (150 + 4).
- Kuverenga: 40% * (150 + 4) = 60 + 1,6 = 61.6.
Mhinduro: 61.6.
2. Maitiro ekuverenga iyo muzana muzana imwe nhamba kubva kune zvimwe
Kana iwe uchifanira kuverenga, ndeipi muzana inhengo yeimwe nhamba kubva kune yakakura mari, iwe unofanirwa kushandisa iyo y / x = p% ye formula. Semuenzaniso, ngatitii yezuva rekuzvarwa re $ 80 yakakuunzwa kwauri pazuva rekuzvarwa kwe $ 80 uye ikozvino iwe unoda kuverenga iyo muzana yemari yakaratidzirwa yaunotoshandisa.
- Mune ino kesi, y = 20, x = 80.
- Iyo equation inowanikwa seinotevera: 20/80 = p%.
- Kuverenga: 20/80 = 0.25.
- Ipapo iwe unofanirwa kushandura chikamu checustrate mukufarira. Kuita izvi, uwande iyo nhamba inokonzeresa pa100.
- Nekudaro, 0.2 * 100 = 25%. Mhinduro: 25%.
Saka iwe wapedza 25% yeiyo $ 80 yakapihwa.
3. Ungaziva sei nhamba yacho kana iwe uchiziva izvo zvakaenzana neyepesenti yacho
Kana iwe uchifanira kuverenga iyo nhamba, uchifunga kuti iwe unoziva zvakaenzana neyevent yeiyo, iwe unofanirwa kushandisa iyo y / p% formula = X. Semuenzaniso, iwe waona kushambadzira mauri iwe uchachengetedza madhora makumi mana, izvo iri, 20% yemutengo wakakwana werwendo rwekupera kwevhiki, kana iwe ukaburitsa ipapo. Iwe unofarira kudzidza mutengo wakakwana werwendo. Sezvo chiziviso chisingatauri chero chinhu pamusoro peizvi, iwe unofunga kuzviverengera pachako.
- Mune ino kesi, y = 40, p% = 20%, uye x hazvizivikanwe.
- Iyo equation inowanikwa seinotevera: 40/20% = X.
- Tendeuka 20% muchikamu chechikamu: 20/100 = 0.2.
- Iyo equation ichave yakaita seiyi: 40 / 0.2 = X.
- Funga nezve: 40 / 0,2 = 200. Pindura: 200.
Mari yakakwana yerwendo iri madhora mazana maviri.