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A man has Rs.480 in the denominations of one-rupee notes, five-rupee notes and ten-rupee notes. The number of notes of each denomination is equal. What is the total number of notes that he has?

Correct Answer: 90

Explanation:

Let number of notes of each denomination be x

Then x + 5x + 10x = 480

⟹ 16x = 480

∴ x = 30.

Hence, total number of notes = 3x = 90.

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