Question

priyanka has only rs2 and rs1 notes with her. if the total number of notes that she has is 19 and the amount of money with her is rs26 then find the total number of notes of rs2 and rs1 respectively.

Answer 1

Let the no of notes of rs 2 and rs1 be x and y respectively
A. To. Q
x+y=19---------------(1)
2x+y=26-------------(2)
Eq(1)-eq(2)
-x=-7
x=7
Put x in eq(1)
y=19-7=12