16.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 ?
A. 45
B. 60
C. 75
D. 90
Answer:
Option : D
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
