Question

Lance arrives early at the airport (with
owers and balloons in hand) to welcome a
friend. Her plane is delayed. While waiting, he notices that it takes 2 minutes 47 seconds to get down the hall on the moving sidewalk. While walking (not on the moving sidewalk), it took him 110 seconds. If he walks while on the sidewalk how long will it take him (s)?

Answer 1

Velocity walking on sidewalk=velocitysidqalk+velocitywalking

= distance/time1+distance/time2
= distance/167sec+ distance/110 seconds

= 110 distance+167distance/(110*167)

or 277 *distance/(110*167)

or
distance/timewalkingonsidewalk=above

timewalkingonsidewalk=110*167/277

Answer 2

There's an error to your formula. (167*110) should be on the top, not the bottom of the fraction. If it's on the bottom you would be doing 277/18370 = 0.015 instead of 18370/277 = 66.31.