전문 번역가, 번역 회사, 웹 페이지 및 자유롭게 사용할 수 있는 번역 저장소 등을 활용합니다.
so we could establish our equation, in the usual way, by cross multiplication: 15 20 900 - 15 * x = 900 * 20 from where we could easily clear the x: x = 900 * 20 / 15 but this method is not valid here, because we have an extra row of data to consider, the floor area in this case. what to do then? we must apply a "double rule of three", a mathematical tool quite simple that we all studied at primary school, but being much less common than the rule of three (and considering how far back our school years were left…), it is not rare that we may have some difficulties to remember it. that is why we have decided to include this particular exercise in our numerical reasoning review. to use this tool, first we place our numerical data in two columns, in the same order that we had arranged them (we can reuse our first table in this section, just omitting the text), and preferably leaving the xin the last row: 15 20 2/3 900 1 81
so we could establish our equation, in the usual way, by cross multiplication: 15 20 900 - 15 * x = 900 * 20 from where we could easily clear the x: x = 900 * 20 / 15 but this method is not valid here, because we have an extra row of data to consider, the floor area in this case. what to do then? we must apply a "double rule of three", a mathematical tool quite simple that we all studied at primary school, but being much less common than the rule of three (and considering how far back our school years were left…), it is not rare that we may have some difficulties to remember it. that is why we have decided to include this particular exercise in our numerical reasoning review. to use this tool, first we place our numerical data in two columns, in the same order that we had arranged them (we can reuse our first table in this section, just omitting the text), and preferably leaving the xin the last row: 15 20 2/3 900 1 81
마지막 업데이트: 2021-03-15
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