Question

If 1/5th part of a tank is filled in one hour,how many time required to fill it full?

Answer 1

Answer:

Step-by-step explanation:

5 hrs

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Answer 2

Answer:

5 hours

Step-by-step explanation:

if 1 part takes 1 hr to fill  then

remaining 4 parts take 4 hrs to fill

so totally 1+4=5 parts takes 5hrs to fill the tank