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21 Sep 2021, 01:30
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E
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Difficulty:
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Question Stats:
58% (02:04) correct
42%
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wrong
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Is the number of workers required to create w1 widgets at r1 widgets per minute less than the number of workers required to create w2 widgets at r2 widgets per minute?
(1) w1 is 20 less than w2.
(2) r1 is 20 less than r2.
(1) w1 is 20 less than w2.
(2) r1 is 20 less than r2.
21 Sep 2021, 08:26
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work = rate * time
m1*t1/w1= m2*t2/w2
target is m1<m2
#1
w1 is 20 less than w2.
work can be of any value >20 for w2 we get w1 least 1 but no info about rates insufficient
#2
r1 is 20 less than r2.
r2 least is 21 and r1 is 1 ; but value of w1 & w2 is not known
insufficient
from 1 &2
here w1 =r1 and w2=r2
or value of w1 and r1 can be any other value such that number of workers m1 & m2 can be different
insufficient
option E
m1*t1/w1= m2*t2/w2
target is m1<m2
#1
w1 is 20 less than w2.
work can be of any value >20 for w2 we get w1 least 1 but no info about rates insufficient
#2
r1 is 20 less than r2.
r2 least is 21 and r1 is 1 ; but value of w1 & w2 is not known
insufficient
from 1 &2
here w1 =r1 and w2=r2
or value of w1 and r1 can be any other value such that number of workers m1 & m2 can be different
insufficient
option E
Bunuel
Is the number of workers required to create w1 widgets at r1 widgets per minute less than the number of workers required to create w2 widgets at r2 widgets per minute?
(1) w1 is 20 less than w2.
(2) r1 is 20 less than r2.
(1) w1 is 20 less than w2.
(2) r1 is 20 less than r2.
21 Sep 2021, 08:44
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Even though from both statements, w1*r1 is less than w2*r2, we dont know the work hour/efficiency of workers for both widgets.
If same efficiency is considered, option: C, Together 1&2
If different efficiency of workers, depend on the context, option: E
But as no efficiency mentioned, option can be assumed: C
Posted from my mobile device
If same efficiency is considered, option: C, Together 1&2
If different efficiency of workers, depend on the context, option: E
But as no efficiency mentioned, option can be assumed: C
Posted from my mobile device
