A man has Rs.680 in the denominations of two-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 ?	Choices:
A) 160
B) 40
C) 680
D) 120
E) 180
Let number of notes of each denomination be x.   Then 2x + 5x + 10x = 680   17x = 680   x = 40   Hence, total number of notes = 3x = 120.   Answer is 120
<result>D</result>
A man has Rs.680 in the denominations of two-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 ?