Question

40notes of rs 50 and rs.100together amount to rs 2750. How many 100 rupee notes are there?

Answer 1

50x+100y=2750
x+y=40

solving equation we get
50 ruppes note= x=25
100 rupees note=y=15

Answer 2

50x+100 =2750x+y=40

solving equation we get

50 rueeps notes =x=25

100 rueeps =y=15

that is answer thank you