Question

in an envelope there are some 5 rupee notes and some 10 rupees notes total amount of these notes together is 350 rupees. number of 5 rupee notes are less by 10 than number of 10 rupee notes. then find the number of 5 rupee and 10 rupees notes​

Answer 1

Answer:

let the number of 5 notes

Answer 2

Step-by-step explanation:

Let the number of 5 rupee note be x and the number of 10 rupee note be y

Then according to the question ,

5x+10y=350

Also,x=2y−10

Putting the value of x from eq .2 in eq. 1 we get,

5(2y−10)+10y=350

20y=400

y=20

Putting the value of y in eq.2 we get x=30

Hence, the number oof 5 and 10 rupee note are30 and 20 respectively.