A takes 8 days to finish a piece of work. B takes 10 days to finish the same work. How long will it take to finish the work when both of them are working together? O 18 days
2 days
9days
40/9days
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1
Answer:
Given:
A alone can complete the work in = 8 days
B alone can complete the work in = 10 days
Formula:
Total work = Efficiency x Time
X
Calculation:
Total work = 40 unit
→ Efficiency of A = 5 units/day
Efficiency of B = 4 units/day
Total efficiency of A and B = 5 + 4 = 9 units
..A and B together can complete the work = 40/9
= 4 days
(LCM of 8, 10)
Step-by-step explanation:
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