Question

please answer this question I will mark you brainless only expert able to answer this question plz answer it you will got 50 point​

Answer 1

Step-by-step explanation:

Let the number of 50 rupee and 20 rupee notes be 2x and 3x.

Given, She has total of 100 notes.

∴ Number of 10 rupee notes = 100 - (2x + 3x)

                                               = 100 - 5x.

Now,

Given that she has a 2,100 currency.

⇒ 50 * 2x + 20 * 3x + 10(100 - 5x) = 2100

⇒ 100x + 60x + 1000 - 50x = 2100

⇒ 110x + 1000 = 2100

⇒ x = 10

Therefore:

Number of 50 rupee notes = 20

Number of 20 rupee notes = 30

Number of 10 rupee notes = 50.

Hope it helps!

Answer 2

suppose no. of 50rs notes=9t

20rs notes=8t (as given)

then no. of 10rs notes = 122 -(9t + 8t)

= 122 - 17t

now as given in question ,

total sum = 2100

50×9t +20×8t +10×(122-17t) = 2100

by solving it gives t=2

so no. of 50rs notes =18

20rs notes =16

10rs notes =88