Priyanka has only Rs 2 and Rs 1 notes with her . If the total number of that she has is 19 and the amount of money with her is Rs 26, then the number of Rs 2 and Rs 1 notes are, respectively
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Let the number of note 2 rules and 1 rules respectively x and y
x+y=19..... (1)
And
2x+y=26.... (2 )
Subtract equation 1 and 2
X+y-2x-y=19-26
Or
-x=-7
So x= 7
Put the value of x in equation 1
X+y=19
7+y=19
Y=19-7=12
Required note of 2 rupees is 7 and 1 rupee note is 12
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