Question

Meena went to a bank to withdraw Rs.3.000. She asked the cashier to give
her Rs.50 and Rs.100 notes only. Meena got 40 notes in all. Find how many
notes of Rs.50 and Rs.100 she received ?​

Answer 1

Answer:

RS.4,000 of RS.100

RS.2,000 of RS.50

Step-by-step explanation:

100x40

50x40/40x50

Answer 2

Answer:

20 each of both Rs 50 and Rs 100

Step-by-step explanation:

let no of rs 50 notes be x and Rs 100 notes be y.

then 50x+100y = 3000

and x+y= 40 or 50x+50y = 40*50=2000

subtract both equations, and you will get 100y-50y = 3000-2000= 1000

or 50y=1000

hence y = 20

hence x= 40-y= 40-20= 20