MGMAT Rate problem

[srisl11]

The ‘moving walkway’ is a 300-foot long walkway consisting of a conveyor belt that moves continuously at 3 feet per second. When Bill steps on the walkway, a group of people that are also on the walkway stands 120 feet in front of him. He walks toward the group at a combined rate (including both walkway and foot speed) of 6 feet per second relative to the ground. Once Bill reaches the group of people, he stops walking and stands with them until the walkway ends. What is Bill’s average rate of movement for his trip along the moving walkway?
A)2 feet per second
B)2.5 feet per second
C)3 feet per second
D)4 feet per second
E)5 feet per second


OA E

[cramya]

Please see attachment.

[srisl11]

Thank you Cramya

[sudhir3127]

The ‘moving walkway’ is a 300-foot long walkway consisting of a conveyor belt that moves continuously at 3 feet per second. When Bill steps on the walkway, a group of people that are also on the walkway stands 120 feet in front of him. He walks toward the group at a combined rate (including both walkway and foot speed) of 6 feet per second relative to the ground. Once Bill reaches the group of people, he stops walking and stands with them until the walkway ends. What is Bill’s average rate of movement for his trip along the moving walkway?
A)2 feet per second
B)2.5 feet per second
C)3 feet per second
D)4 feet per second
E)5 feet per second


OA E

Please use the search option before starting a new thread... this Question has been answered many times ..

its E 5 seconds

the group has to cover 180 feet at a speed of 3 ft. hence it takes
180/3 = 60 seconds

Bill has cover the whole distance of 300 foot

that means

300 foot/ 60 seconds = 5 ft/seconds

[4meonly]

Guys, don't you think that

What is Bill’s average rate of movement for his trip along the moving walkway?

Means that we should calculate the AVG speed relative to the conveyor?
I suppose that 5 mps is the Bill's movement relative to the ground...
Avg speed relative to the conveyour should be 2 mps

What do you think?