Question

Darcy was flying on an airplane. The card in the seat-back in front of her said that the plane holds 416 people. But the plane isn't full. Darcy observes that approximately one out of every three seats is empty. What would be a good estimate of the number of passengers on the plane?

a.)350

b.)280

c.)210

d.)310

Answer 1

If one of every three seats is empty, then 2 of every three seats is not empty. About 2/3 of the plane's passenger's capacity is full. 2/3 of 416 is 277 and 1/3.

b.) is the answer.