Question

20. A sum of 500 is in the form of notes of denominations of 5 and 10. If the total
number of notes is 90, find the number of notes of each type.
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Answer 1

Answer:

5 Amount Notes = 85

10 Amount Notes = 5

Step-by-step explanation:

Total Amount = 500

Total Notes = 90

Let the Number of 10 Amount notes = x

Then Number of 5 Amount notes = 90 - x

Then Sum of 10 Amount Notes = 10x

Sum of 5 Amount Notes = 5(90 - x)

Acc to Sum,

10x + 5(90 - x) = 500

10x + 450 - 5x = 500

5x + 450 = 500

5x = 500 - 450

5x = 50

x = 50/10

x = 5

Therefore, No of 10 Amount Notes = 5

and No. of 5 Amount Notes = 90 - 5 = 85

Answer 2

Step-by-step explanation:

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