A) 27 days
B) 37 days
C) 36 days
D) 24 days
Correct Answer: A
Solution :
[a] Let number of days = x \[\therefore \] \[\frac{8400}{7\times 36}=\frac{8100}{x\times 9}\] \[x=\frac{8100\times 7\times 36}{8400\times 9}=27\,days\]
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