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3 pumps , working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?

3 pumps , working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day? Correct Answer 12

ধরা যাক, প্রতিদিনের Working hour 'x' বেশি পাম্প, কম working hour per day কম দিন,বেশি " " " " pumps 4:3Days 1:2: : 8:xSo,4×1×x = 3×2×8or,x = 3×2×84 = 12

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3 pumps, working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?
3 pumps , working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day ?
3 pumps working 8 hours a day can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?