A sum of ₹ 500 is in the form of denominators of ₹5 and ₹ 10 . If the total number of notes is90 find the number of notes of each denomination . ( Hint : let the number of 5 rupee notes be ' x ' , then number of 10 rupee notes =90-x ) please anwer it quickly. it's very necessary
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Answer: 80 notes of 5 INR, 10 notes of 10 INR
Step-by-step explanation:
5x + 10(90-x) = 500
=> 5x + 900 - 10x = 500
=> 900 - 5x = 500
=> 900-500 = 5x
=> 400 = 5x
=> X = 80
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