There are three boxes which are labeled as Rs100, Rs150, and Rs200. One box contains two notes of Rs. 50. The second box contains one note of Rs50 and one note of Rs100 The third box contains two Rs. 100 notesAll boxes are labeled incorrectly.

What is the minimum number of boxes you must check in order to label all boxes correctly?

You just need to check Rs.150 box.

Explanation: The trick to solving this puzzle is to remember that all boxes are labeled incorrectly.

Case 1: If it contains Rs. 100 notes, then
A) Current box contains Rs. 200 notes.
B) Rs 100 box contains Rs. 150 notes.
C) Rs. 200 box contains Rs. 100 notes.

Case 2: If it contains Rs. 50 notes, then
A) Current box contains Rs. 100 notes.
B) Rs. 100 box contains Rs. 200 notes.
C) Rs. 200 box contains Rs. 150 notes.

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