Question

the price of a notebook and a pen is 20 rupees.price of a notebook and 3 pens is 30 rupees.from two pairs of algebraic equations and find the price of a pen and a notebook.​

Answer 1

Answer:

notebook = ₹15

pen = ₹5

Step-by-step explanation:

x + y = 20 --- 1

x + 3y = 30 --- 2

-2y = 10

y = 5

in 1

x + 5 = 20

x = 15

notebook = ₹15

pen = ₹5