প্রশ্ন ও উত্তর
An empty pool is being filled with water at a constant rate. It takes 9 hours to fill 3/5 th of the pool. How much more time will it take to compeletely fill the pool?
গণিত Time and Work 07 Oct, 2020
প্রশ্ন An empty pool is being filled with water at a constant rate. It takes 9 hours to fill 3/5 th of the pool. How much more time will it take to compeletely fill the pool?
সঠিক উত্তর
None of these
মন্তব্য
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