Question

I have 20rupee note =1 ten rupee note +() 5 rupee notes

Answer 1

Let (x) 5 rupees note
____________


Rs 20 = Rs 10 + Rs (x) 5

Rs 20-Rs 10 = Rs 5(x)

Rs 10 = Rs 5(x)

10/5 = x

2=x.

Now,

(2) five rupees notes are required.


I hope this will help you


-by ABHAY