RRB Group D Model Paper 6 with solutions

A statement is given followed by some conclusions. You have to consider the given statement to be true even if it seems to be at variance with the commonly known facts. You have to decide which of the following conclusions follow from the given statement.
Statement:
The cost of 3 apples and one banana is ₹ 200.
Conclusion:
I. Apples are expensive
II. Bananas are expensive
III. Both bananas and apples are expensive