karthik has a number of 1rupee and 2rupee coins in his bag. if the number of 2rupee coin is double the 1rupee coin and the total amount is rupees 65,find the number if 1rupee and 2rupee coins each
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Consider the no of 1 rupees coin be X
Consider the no of 2 rupees coin be Y.
Given that Y=2X.-(equation 1)
1(x)+2(y)=65
x+2y=65
x+4x=65(from equation 1)
5x=65
x=13.-(equation 2).
substituting equation 2 in 1.
Therefore
Y=2(13)
Y=26.
Ans The no of 1 rupees coin =13
The no of 2 rupees coin=26
Hope it helps.
Consider the no of 2 rupees coin be Y.
Given that Y=2X.-(equation 1)
1(x)+2(y)=65
x+2y=65
x+4x=65(from equation 1)
5x=65
x=13.-(equation 2).
substituting equation 2 in 1.
Therefore
Y=2(13)
Y=26.
Ans The no of 1 rupees coin =13
The no of 2 rupees coin=26
Hope it helps.
Spartan3338:
therefore x+2y=65
therefore x+4x=65
therefore x=13
ya okay I got it
goid
good
bye
2rupees x 2(double of no of 1rupee coins)
=4x
yes
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