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a sum of Rs 500 is in form of denominator of Rs 5 and Rs 10 . if the total number of notes is 90 find the number of notes of each type .
Asked by singhaprajita7144.7sdatl | 27 May, 2020, 09:46: AM Expert Answer

Let the number of 5 Rupee note = x

Then the number of 10 Rupee note = 90 - x

Total money = Rs. 500

As per the given condition,

5x + 10(90 - x) = 500

5x + 900 - 10x = 500

-5x = -400

x = 80

Hence, number of 5 Rupee note = 80

And, number of 10 Rupee note = (90 - 80) = 10

Answered by Renu Varma | 27 May, 2020, 10:03: AM
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