Question

a sum of rupees 500 is in the form of deninations of rupees 5 & rupees 10. if the total number of notes is 90 find the number of notes of each denomination ?
please help me ​

Answer 1

Answer:

The value of rupees five nodes will be acts into these 5 that is equal to these five x and the value of rupees 10 nodes will be 90 minus ax into Rupees 10 that is equal to rupees. 900 minus 10x So it is given that the total value of all notice rupees 500 therefore 5x plus 900 minus 10 x is equal to 500.

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Answer 2

Let the number of Rs 5 notes be x

Total number of notes = 90

Hence the number of Rs 10 notes be (90 − x)

Total sum of money = Rs 500

∴ 5x + 10 (90 − x) = 500

5x + 900 − 10x = 500

 − 5x = 500 − 900

-5x = −400

∴ x = 80

Hence there are 80 notes of Rs 5

Number of Rs 10 notes = 90 - 80 = 10

Hence there are 10 notes of Rs 10.

@Harshit mangla

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