Question

The average weight per adult is 150 pounds, and the average weight per child is 40 pounds . The maximum weight is 1,500 pounds. Suppose there are ten children in the elevator how many adults can get in.

Answer 1

If the lift can have 1,500pounds you will have to subtract the children first.
40pounds x 10children=400pounds
1500pounds-400pounds=1100

Then you will have to do
1100 / 150 to work out the adults amount

The equals 7.33 so you would need to round it down ,




therefore 7adults can fit in the lift

Answer 2

With the ten children already in the elevator, the weight is at 400 pounds. Therefore you have 1,100 pounds before reaching the maximum weight. So about 7 adults can get in.