Question

In a invelop there are some 5 ruppees note and some 10 ruppe note .Total amount of these notes together is 350 ruppes . Number of 5 ruppes notes are less by 10 number of 10 ruppe notes then find the number of 5 ruppe and 10 ruppe notes​

Answer 1

Answer:

5 rupees=30

10 rupees=20

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 equation .2 in equation. 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 of 5 and 10 rupee note are 30 and 20 respectively.