A drum has two inlet pipes one for oil and another for kerosene. Oil inlet pipe can fill the tank in 8 hours and kerosene can fill the tank in 12 hours. If both the pipes are opened together for one hour then calculate percentage of kerosene present in the mixture and total time taken to fill the drum.
1
50%, 2.4 hours
2
40%, 2.4 hours
3
50%, 4.8 hours
4
40%, 4.8 hours
5
50%, 5.2 hours