Question

there are 9 people in elevator. togeather they weight 878.4 find the average weight​

Answer 1

Answer:

The Maximum possible number of people in the group is 11

Step-by-step explanation:

Given ,

Weight limit of elevator = 630 kg

Weight of heaviest person in the lift = 57 kg

Weight of lightest person in the lift = 53 kg

To get the maximum number of people in the lift, we will take the people who have the minimum weight

Now , let us suppose there are ' n ' people of 53 kg weight.

So,

The total number of people in the lift

= 53 + 53(n) + 57 <= 630

n <= (520/53)

n <= 9.8

Since, the number of people cannot be in decimal so we will take

n = 9   [ we have not taken it as 10 because in that case total weight that lift can allow will exceed]

Finally the maximum number of people in lift

= person with 53 kg + person with 57 kg + n

= 1 + 1 + 9

= 11

Hence,

The Maximum possible number of people in the group is 11