Let’s model the total cost:
Let the total trip be d miles.
If : cost = p (d less than 5 miles)
If d>5
Additional Cost = 0.1*p*(d-5)
Total cost = p+0.1*p*(d-5)
Statement (1):
The total charge was 3.3p
Let’s find the number of miles that result in a total cost of 3.3p:
Total cost = p + 0.1p* (d-5)= 3.3p
2.3p= 0.1 p*(d-5)
d=28
This means the trip was less than or equal to 28 miles.
So the trip was not more than 30 miles.
Statement (1) is sufficient.
Statement (2):
> The total charge was $132
We’re also told , but no value is specified.
So we now have:
132 = p + 0.1p*(d-5)
Rewriting:
Assuming d-5 as p
132 = p(1 + 0.1m)
132/p-1=0.1*m
m=10(132/p-1)
If we put p as 40 we get the value of m as 23 & d-5 = 23 & so d = 28
But if we put p as 20 we get a value of m as 56 & d-5=56 & so d=61
Hence it cannot be properly determined so statement 2 alone is not sufficient
Therefore the correct answer is A. Statement 1 alone is sufficient but statement 2 is mot