Math, asked by kanwarpal88109, 9 months ago

Pipe A can fill an empty tank in 9 hour while pipe B can empty the full tank in 10 hours.If both are opened in the empty tank,how much time will they take to fill it up completely?

Answers

Answered by shivam36089

4

Answer:

19

Step-by-step explanation:

Time taken by pipe A = 9hr

Time taken by pipe B = 10 hr

total time taken = 9+10=19 hr

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