A man has Rs. 80 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 ?  Choose the correct choice from the following choices:
A) 7
B) 2
C) 13
D) 15
E) 10
Let number of notes of each denomination be x.   Then, x + 5x + 10x = 80 16x = 80 x = 5.   Hence, total number of notes = 3x = 15.   Answer:15
<result>D</result>
A man has Rs. 80 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 ?