Question

A total of 90 currency notes, consisting only of ₹ 5 and ₹ 10 denominations, amount to ₹ 500. Find the number of notes in each denomination.

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Answer 1

Answer:

let the number of Rs 5 notes be X and,

the number of Rs 10 Notes be Y.

X+Y=90

5X+10Y=500

5X+5Y = 450

5Y=50

Y=10

X=80

Answer 2

Answer:

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