A) 25
B) 45
C) 50
D) 20
Correct Answer: D
Solution :
A?s one day?s work \[=\frac{1}{30}\] B?s one day?s work \[=\frac{1}{60}\] \[\therefore \](A+B)?s one day?s work \[=\frac{1}{30}+\frac{1}{60}=\frac{1}{20}\] \[\therefore \]Both A and B working together can complete the job in 20 days.You need to login to perform this action.
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