Question

Tact the
Let us see some more examples:
Example-8. Rubina went to a bank to withdraw 2000. She asked the cashier to give the cash
in 50 and 100 notes only. Rubina got 25 notes in all. Can you tell how many notes each of
and 100 she received?​

Answer 1

Step-by-step explanation:

let 50rs.note =X

100rs.note = y

A.Q.T= X+Y= 25

50x+100y= 2000

X+2y =40(each side divided 50 )

EQ( 1 ) and ( 2 ) less

X+Y=25

X +2Y =40

_ _. _

_y =_15

y = 15

y put in EQ no.1

X+15=25

X=25_15=10

50rs.note =10

100rs.note =15