Question

You have 23 coins in your pocket, which are worth a total of 71 rupees. You have only one-rupee and five-rupee coins in your pocket. Let’s assume that number of one rupee coins is ‘x’. Then choose the correct linear equation to find the number of one-rupee coins in your pocket.

Answer 1

Answer:

x = 11.

Step-by-step explanation:

Let the number of 5 rupee coins be 'y'.

Then , according to the question, we can write

x + y = 23 ---- (i).

And, 1.(x) + 5.(y) = 71 ------(ii).

or, x + 5y = 71.

Therefore, from equations (i) and (ii), we get

4.y = 48,

Therefore,y = 12.

Putting the value of y in equation (i) we get x = 11.