Discuss Forum

1.

A tap can fill a tank in 6hours.After half hour the tank filled ,three more similar taps are opened.What is the total time taken to fill the tank completely?

  • A. 3 hours
  • B. 3 hours
  • C. 3 hours
  • D. 3 hours

Answer: Option D

Explanation:

1 tap full  =  6 hurs 
1 tap half  =  3 hrs 
4 tap half  =  3/4 hrs  = 45 min
∴ Total   = 3 hrs 45 min 

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