Time taken by P to Q are in the ratio 5: 4 and the time taken by Q and R is 20/3 minutes. P alone can complete the tank in 25 minutes. If P and Q can complete 90% of the tank in 10 minutes. If the time taken by R alone to fill the remaining tank is x. Find the value of x.
1
2.5 minutes
2
1 minutes
3
1.5 minutes
4
2 minutes
5
3 minutes