5 persons working 8 hours daily can complete a wall in 10 days . when they have worked for 4 days 5 more persons are brought to work. the wall can now be completed in
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Answer:
3 days
Step-by-step explanation:
5 person working 8 hours complete in 10 days
⇒ Amount of work = 5 person x 8 days x 10 days
After 4 days:
Amount of work left = 5 person x 8 hours x (10 - 4) days
Amount of work left = 5 person x 8 hours x 6 days
5 more people joined in:
Number of men now = 5 + 5 = 10
Define x:
Let the number of days needed be x
Find the number of days needed:
5(8)(6) = 10(8)(x)
240 = 80x
x = 240 ÷ 80
x = 3
Answer: The work can be completed in another 3 days
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