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Roger can chop down 4 trees in an hour. How long does it

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by BTGmoderatorDC » Mon Jul 30, 2018 4:37 pm

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B

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E

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Roger can chop down 4 trees in an hour. How long does it take Vincent to chop down 4 trees?

(1) Vincent spends 6 hours per day chopping down trees.
(2) Vincent takes twice as long as Roger to chop down trees.
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Source: — Data Sufficiency |

by deloitte247 » Fri Aug 10, 2018 8:19 am
Question ; How long does it take Vincent to chop down trees?

Statement 1 ; Vincent spends 6 hours per day chopping down trees.
This does not provide us with information on the number of trees that Vincent cut in a day, so we cannot calculate the number of hours he took to cut 4 trees.
Hence, statement 1 is INSUFFICIENT.

Statement 2; Vincent takes twice as long as Rogers to chop down trees.
That is, V = 2 * R
V = 2R
If R takes 1 hour to cut 4 trees,
V will take 2 hours to cut 4 trees.
Thus, Vincent takes 2 hours to chop down 4 trees.
Therefore, Statement 2 is SUFFICIENT.

Finally, Statement 2 alone is sufficient. Option B is the CORRECT ANSWER.
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