a sum of 500 is in the form of 5 rupee and 10 rupee . if the total number of notes is 75 . find the number of notes
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let Rs. 5 notes=x
Rs. 10 notes=y
x+y=75
5x+10y=500
x+2y=100
x+y=75
y=25
x=50
There are 50 Rs 5 notes and 25 Rs 10 notes.
Rs. 10 notes=y
x+y=75
5x+10y=500
x+2y=100
x+y=75
y=25
x=50
There are 50 Rs 5 notes and 25 Rs 10 notes.
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