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 ?

Answer 1

Answer:

90 notes

Step-by-step explanation:

Let 1 rupees note is x, then 5 rupees note also X  and 10 rupees note will be also X 

as per given conditions 

X +5X +10X=480

16X=480

X=480/16 =30 of each 

total number will be 30+30+30=90

verification

(30x1=30)+(30x5=150)+30x10=300)=480

   

Answer 2

Answer:  The required number of notes is 90.

Step-by-step explanation:  Given that 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.

We are to find the total number of notes he has.

Let x represents the number of notes of each of the three denominations.

Then, according to the given information, we have

$1\times x+5\times x+10\times x=480\\\\\Rightarrow x+5x+10x=480\\\\\Rightarrow 16x=480\\\\\Rightarrow x=\dfrac{480}{16}\\\\\Rightarrow x=30.$

Therefore, the total number of notes is given by

$x+x+x=3x=3\times 30=90.$

Thus, the required number of notes is 90.