Question

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Answer 1

Amount in the purse = Rs 5000

Types of notes = Rs 100 and Rs 500

Let the number of Rs 100 notes be x and let the number of Rs 500 notes be y

Then, by question

x + y = 30 -------(1) {given}

Also,

100x + 500y = 5000

x + 5y = 50 ---------------(2)

Solve (1) and (2)

x + y = 30

x + 5y = 50

- - -

---------------------

-4y = -20

[y = 5]

Also, x + y = 30

Therefore, x = 25

Thus, there are 25 notes of Rs 100 and 5 notes of Rs 500.

Ratio = 5/25 = 1/5 = 1:5.