A) 67
B) 75
C) 81
D) 84
Correct Answer: B
Solution :
[b] Let the number of men be n Men Days \[{}_{n}^{42}\downarrow \] \[{}_{14}^{25}\uparrow \] \[\therefore \frac{n}{42}=\frac{25}{14}\Rightarrow n=75\]You need to login to perform this action.
You will be redirected in
3 sec