A sum of rs 500 is in the form of denominatuon of rs 5 and rs 10. if the total numbar of nptes is 90, find the number of notes of each type
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Let the number of Rs 5 notes be x
Hence the number of Rs 10 notes be (90 − x)
Total sum of money = Rs 500
∴ 5x + 10 (90 − x) = 500
5x + 900 − 10x = 500
− 5x = 500 − 900 = −400
∴ x = 80
Hence there are 80 notes of Rs 5 and 10 notes of Rs 10.
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Hence the number of Rs 10 notes be (90 − x)
Total sum of money = Rs 500
∴ 5x + 10 (90 − x) = 500
5x + 900 − 10x = 500
− 5x = 500 − 900 = −400
∴ x = 80
Hence there are 80 notes of Rs 5 and 10 notes of Rs 10.
I hope this answer helped you.
Please mark as brillianest.
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