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navik [9.2K]
2 years ago
9

i five man take 45 hours to build a wall how long will it take 9 men working at the same pace to build this wall​

Mathematics
1 answer:
Zarrin [17]2 years ago
4 0

Answer:

81 hours

Step-by-step explanation:

Let x be the time are needed

45:5 = x:9

5x = 45×9

5x = 405

x = 81

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