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11 Jul 2025, 04:11
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Difficulty:
25%
(medium)
Question Stats:
80% (01:54) correct
20%
(02:16)
wrong
based on 183
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If 30 machines, each working at the same constant rate, together can produce n/2 units of an item in 15 days, how many machines will be needed to produce 2n units of the item in 45 days?
A. 30
B. 40
C. 45
D. 50
E. 60
A. 30
B. 40
C. 45
D. 50
E. 60
11 Jul 2025, 04:12
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@Bunuel request you to please provide a solution, came across this Q on E-Gmat Mock but the same question on GMATClub was archived
11 Jul 2025, 06:50
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n=30
Rate = R
So we know,
30R = n/2*15 =n/30
R = n/900
Let the number of required machines be x :
So we want to find x such that
xR = 2n/45
x=2n/45R = 2n*900/45*n = 1800/45 = 200/5 = 40
Answer is B : 40
Rate = R
So we know,
30R = n/2*15 =n/30
R = n/900
Let the number of required machines be x :
So we want to find x such that
xR = 2n/45
x=2n/45R = 2n*900/45*n = 1800/45 = 200/5 = 40
Answer is B : 40
