please tell me the anwser and method of doing it thanx.
rounding off the cost per litre to nearest 10p gives 90p
rounding off the distance to nearest 100 gives 1200 miles
So answer =total fuel required * Cost per liter of fuel= $\displaystyle \frac{1200}{5} \times 90p$
now convert the unit.
answeer is "c" (as already told to you by Bebrave)