An elevator has a weight limit of 630 kg. It is carrying group of people of whom the heaviest weighs 57 kg and the lightest weighs 53 kg. What is the maximum possible number of people in the group?___

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Solution

Given, $53 n + 53 + 57 < 630 \Rightarrow 53 n < 520 n < 10 \Rightarrow n_{m a x} = 9$
hence, maximum number of people inside the elevator = $n_{m a x} + 2 = 9 + 2 = 11$ .

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An elevator has a weight limit of 630 kg. It is carrying group of people of whom the heaviest weighs 57 kg and the lightest weighs 53 kg. What is the maximum possible number of people in the group?___

Given, 53n+53+57<630⇒53n<520n<10⇒nmax=9 hence, maximum number of people inside the elevator =nmax+2=9+2=11.

Given, $53 n + 53 + 57 < 630 \Rightarrow 53 n < 520 n < 10 \Rightarrow n_{m a x} = 9$
hence, maximum number of people inside the elevator = $n_{m a x} + 2 = 9 + 2 = 11$ .