A can do a piece of work in 12 hours and B can do it in 8 hours .how long they will take if they work together?
Answers
Answered by
1
We will solve this using the LCM technique.
A takes 12 hours & B takes 8 hours. So, let the total work be LCM(12,8) = 24 Units
A -> 12 hours = 2Units/hour
B -> 8 hours = 3 Units/hour
A + B = 5 Units/hour
Thus, TOTAL TIME = 24/5= 4.8 Hours (Answer)
A takes 12 hours & B takes 8 hours. So, let the total work be LCM(12,8) = 24 Units
A -> 12 hours = 2Units/hour
B -> 8 hours = 3 Units/hour
A + B = 5 Units/hour
Thus, TOTAL TIME = 24/5= 4.8 Hours (Answer)
Answered by
0
Given:
A can do given work in 12 hrs
B can do given work in 8 hrs
To Find:
The time both will take if they work together.
Explanation:
According to the given question
Time taken by A to do given work in 1 hour = 1/12
Time taken by B to do given work in 1 hour = 1/8
Now if both A and B work together for an hour
= (1/12) + (1/8)
= 24/5
Therefore both can complete a given work in 4.8 hours.
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