A) 3:1
B) 5:2
C) 7:2
D) 3:2
Correct Answer: C
Solution :
[c] 2 m + 3 b can do a work in 10 days \[\Rightarrow \]20 m + 30 b can do it in one day Similarly, 24 m + 16 b can also do it in 1 day \[\therefore \] 20m+30b=24m+ 16b \[\Rightarrow \,\,4m\,=14\,b\,or\,\frac{m}{b}=\frac{7}{2}\] \[\therefore \] The required ratio is 7: 2You need to login to perform this action.
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