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John, Michael and Sameer paddled a boat for about 1500 feet.

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John, Michael and Sameer paddled a boat for about 1500 feet.  [#permalink]

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New post Updated on: 25 Sep 2013, 13:54
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66% (02:07) correct 34% (01:39) wrong based on 426 sessions

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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.

Originally posted by josemarioamaya on 25 Sep 2013, 13:52.
Last edited by Bunuel on 25 Sep 2013, 13:54, edited 1 time in total.
RENAMED THE TOPIC.
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Re: John, Michael and Sameer paddled a boat for about 1500 feet.  [#permalink]

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New post 01 Oct 2013, 10:08
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Consider the following table. We don't have enough information for the ?s
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Re: John, Michael and Sameer paddled a boat for about 1500 feet.  [#permalink]

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New post 25 Sep 2013, 18:04
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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.



In order to answer this q correctly we need to consider 2 factors. 1)Hours paddled 2)Speed paddled
Hours*Speed = Distance Paddled.

Using eq1 = T(jhon)=T(mic)+1 and speed(john)=Speed(sameer)-5 - Which does not tell anything
Using eq2 Distance covered by Sameer = 9*50=450 - therefore Sameer cannot be the one.

Using eq1 and 2 Speed(john)=45 But - time of John is still unknown, cannot answer using both
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Re: John, Michael and Sameer paddled a boat for about 1500 feet.  [#permalink]

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New post 28 Jan 2015, 13:24
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.


Answer is E:

approach is as follows:

total = 1500 ft from stem

from 1: No info on the rate for John or Michael so NSF
from 2: we can just tell, sameer paddles 50*9 = 450 ft

1+2:
John and Michael should have paddled 1050 ft. we still do not know rate of Michael to calculate how many ft he paddled to get to an answer NSF.
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John, Michael and Sameer paddled a boat for about 1500 feet.  [#permalink]

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New post 01 Aug 2016, 04:39
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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Re: John, Michael and Sameer paddled a boat for about 1500 feet.  [#permalink]

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New post 30 Jul 2018, 08:37
Clearly both the statements are inadequate to answer to paddled the longest distance?

Option E is the correct answer.
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Re: John, Michael and Sameer paddled a boat for about 1500 feet. &nbs [#permalink] 30 Jul 2018, 08:37
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John, Michael and Sameer paddled a boat for about 1500 feet.

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