X, Y and Z can do a piece of work in 46 days, 92 days and 23 days, respectively. X started the work. Y joined him after 2 days. If Z joined them after 8 days from the beginning, then for how many days did X work?
A. 16
B. 21
C. 18
D. 13
Answer: Option C
Related Questions on Time and Work
A. 18 days
B. 24 days
C. 30 days
D. 40 days
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