Verified Answer :

For 5/9 tank it takes = 2 min.
For a tank, it would be: 2 * 9 /5 = 18/5 = 3.6 minutes

In short, Your Answer would be 3.6 minutes or 6 min, 36 sec

Hope this helps!

MohamedSharif

5\9=2 minutes 
   1=??
1 x 2 divided by 5\9
2 divided by 5\9(change the sign and flip the fraction
2 x 9\5=18\5
answer=3.6 minutes 

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