Answer:
1. 63.08 Rs
2. 5.03 Rs
3. 25.2 Rs
Explanation: answer to Q1 is already given.
Q2.=petrol price December2013 - December2011
=78.56-73.53
=5.03 Rs.
Q3.=Diesel price Aug '14 - Jan '11
=67.26-42.08
=25.2 Rs.
sorry idk the answer of Q4.
