Aspire Faculty ID #16406 · Topic: NIMCET 2010 · Just now
NIMCET 2010

An elevator has a capacity of 12 adults or 20 children. How many adults can board the elevator with 15 children?

Solution

Capacity ratio: 12 adults = 20 children 1 adult = $\dfrac{20}{12} = \dfrac{5}{3}$ children Let number of adults = $x$ Children used = $15$ Equivalent adult load: $15$ children = $\dfrac{15}{20} \times 12 = 9$ adults capacity used Remaining adult capacity = $12 - 9 = 3$

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