Question

A sum of rupees 500 in the form of denominations of rupees 10 and rupees 20 if the total number

of notes are 35 find the number of notes of each denomination.
and its Rs.10 and 20 not Rs.10 and 5
pls give the answer
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Answer 1

Answer:

Let no. of 10 rupees notes be X

Total number of notes = 35

No. of 20 rupees notes = 35-x

By the problem ,

10x + 20× (35-x) = 500

10x + 700 - 20x = 500

-10x = 500-700

-10x = -200

10x = 200

x = 20

So no. of 10 rupees notes is 20 and no. of 20 rupees notes is 35-20 = 15

Hope it helps

Step-by-step explanation:

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Answer 2

Answer:

20 notes of rupees 10 and 15 notes of rupees 20

Step-by-step explanation:

Let

     number of notes of denomination of rupees 10 be 'x' in number

     number of notes of denomination of rupees 20 be 'y' in number

Total number of notes = 35   [given]

So, x + y = 35 or x = 35 - y

Also given sum of rupees = 500.

So, 10x + 20y          = 500

     10(35 - y) + 20y = 500

     350 - 10y + 20y = 500

     10y                      = 500 - 350

     y                         = 150/10

     y                          = 15

So, x = 35 - y = 35 - 15 = 20

Therefore, there are 20 notes of rupees 10 and 15 notes of rupees 20.

I hope you find the solution helpful :)