a sum of rupees 500 is in the form of denominations of rupees 5 and rupees 10 if the total number of notes is 90 find the number of notes of each type
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Answer:
80 notes of 5rs
10 notes of 10rs
Step-by-step explanation:
x+y=90
x=90-y
5x+10y=500
5x=500-10y
x=100-2y
Now ,100-2y=90-y
2y -y =100-90
y=10
Mark it brainliest
x+y=90
x=80
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