Question

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. 90 c. 80 d. 75

Answer 1

Suppose there are x 1 rupee, y 5 rupee and z 10 rupee notes are there.

but by given condition x=y=z

therefore x+5x+10x=480

16x=480

x=480/16

x=30

Thjeerfore there are 30 notes of each 1m 5 and 10 rupee denominations