Question

A man has only ₹50 and ₹100 notes in his purse if he has 25 notes in all totalling ₹2000, how many notes of each kind does he have?

Answer 1

Given:

Number of notes = 25

Total amount = ₹2000

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Assumed all ₹50 notes:

Total amount = ₹50 x 25 = ₹1250

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Find the difference in revenue:

₹2000 - ₹1250 = ₹750

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Find the difference in the value of the two notes:

₹100 - ₹50 = ₹50

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Find the number ₹100 notes:

₹100 notes = ₹750 ÷ 50 = 15

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Find the number of ₹50 notes:

₹50 notes = 25 - 15 = 10

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Answer: 10 pieces of ₹50 and 15 pieces of ₹100