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03 Dec 2021, 03:45
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
77% (02:14) correct
23%
(02:14)
wrong
based on 184
sessions
History
Date
Time
Result
Not Attempted Yet
Adam does half as much work as Bob in one-sixth of the time. If together they take 10 days to complete a work, how much time shall Bob alone take to do it?
A. 70 days
B. 30 days
C. 40 days
D. 50 days
E. 100 days
A. 70 days
B. 30 days
C. 40 days
D. 50 days
E. 100 days
06 Dec 2021, 02:55
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Time taken by bob=x days
Time taken by Adam to complete 1/2 work = x/6 days
=> Time taken by Adam to complete work= x/3 days
Given 1/x + 3/x = 1/10
=> x=40 (C)
Time taken by Adam to complete 1/2 work = x/6 days
=> Time taken by Adam to complete work= x/3 days
Given 1/x + 3/x = 1/10
=> x=40 (C)
