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# How long would it take for ball moving in a straight line to travel 24

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Math Expert
Joined: 02 Sep 2009
Posts: 52296
How long would it take for ball moving in a straight line to travel 24  [#permalink]

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28 Mar 2017, 01:39
00:00

Difficulty:

15% (low)

Question Stats:

91% (00:47) correct 9% (01:07) wrong based on 43 sessions

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How long would it take for ball moving in a straight line to travel 246 meters?

(1) It takes the ball 2 seconds to make 1 rotation.
(2)The ball makes 7 rotations per meter.

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Joined: 12 Oct 2015
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Re: How long would it take for ball moving in a straight line to travel 24  [#permalink]

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28 Mar 2017, 12:54
Bunuel wrote:
How long would it take for ball moving in a straight line to travel 246 meters?

(1) It takes the ball 2 seconds to make 1 rotation.
(2)The ball makes 7 rotations per meter.

C.

1) 2 seconds per rotation, but no info on how many rotations per meter.
2) rotations per meter but no info on how long per rotation.

1 & 2 together works.
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Re: How long would it take for ball moving in a straight line to travel 24 &nbs [#permalink] 28 Mar 2017, 12:54
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