Answer:

Step-by-step explanation:

Let the number of Rs 50 notes and Rs 100 notes be x and y respectively.

According to the question, x + y = 25

(i) 50x + 100y = 2000

(ii) Multiplying equation (i) by 50, we get 50x + 50y = 1250

(iii) Subtracting equation (iii) from equation (ii), we get 50y = 750 y = 15

Putting this value in equation (i), we have x = 10 Hence, Meena has 10 notes of Rs 50 and 15 notes of Rs 100.

Answer:

Let the number of rupees 50 and 100 notes = x + y

So, according to question

x + y = 25. ( 1 )

50 x + 100 y = 2000. ( 2 )

by elimination method we have

50 * x + y = 25

Subtracting equation 1 from 2

50x + 100y = 2000

50x + 50y = 1250

50y = 750

y = 15

x + y = 25 ( given)

x = 25-15

= 10

therefore there are 10 fifty rupee notes and 15 hundred rupee notes