Question

I have a total of rupees 300 in coins of denominations Rupees 1 rupees 2 and rupees 5 in number of rupees two coins is three times the number of rupees 5 coins the total number of coins is 160 how many coins of each denomination are with me​

Answer 1

Answer:

Step-by-step explanation:

Let the number of 1 rupee coins X ,2 rupee coins Y and 5 rupee coins to be Z,

According to your questions You have 300 hundred rupees means 1

(1*X)+(2*Y)+(5*Z)=300______(1)

X+Y+Z=160_______( 2 )

and Y=3Z_____(3)

Solving 1&3

(1*X)+(2*3Z)+(5*Z)=300

X+11Z=300___( 4 )

Solving 2&3

X+3Z+Z=160_____( 5 )

Solving 4&5

7Z=140

Z= 20;

From 1&2

X=80;

Y=60;