josemarioamaya wrote:

John, Michael and Sameer paddled a boat for about 1500 feet. Who paddled the boat for the longest distance on the trip?

(1) John paddled 1 hour more than Michael did but at an average rate of 5 feet per hour slower than Sameer.

(2) Sameer paddled 9 hours and averaged 50 feet per hour.

(1) John paddled 1 hour more than Michael did but at an average rate of 5 feet per hour slower than Sameer.

Michael time is not known , therefore John's time cannot be known .

Sameer rate is not known therefore john's rate cannot be known

Too many gaps:- Neither the rate nor the time is known for any three of the friends

INSUFFICIENT

(2) Sameer paddled 9 hours and averaged 50 feet per hour.

Sameer time and distance covered is known:- 9 hours and 450 feet. But info for John and Michels is missing.

INSUFFICIENT

Combining both

Sameer's time = 9 hour ; Sameer's rate =50

Michael's Time =unknown ; Micheal's rate = unknown

John's time = Micheals time + 1 = 1+ unknown = unknown ; John's rate = sameer's rate - 5 = 50 -5 = 45

Still John's time is missing .This will prevent us to get info of at least two persons (which we could have used to subtract from 1500 to get the info of third person)

So E

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