Question

the price of 3 notebooks and 5 pens is 49 rs and the price of 4 notebooks and 6 pens is 62 rs. what is the price of notebook? what is the price of a pen​

Answer 1

Step-by-step explanation:

let cost of a notebook be x and a pen be y

then... 3x+5y=49 and

4x+6y=62

now,multiplying equation 1 by 4 and equation 2 by 3we get

12 x + 20 y =196 and 12 x + 18 y i=186

simplifying it we get

2y = 10 and this implies that y = 5

putting y= 5 in equation 1 we get

3x+25=49

3x=24

x=8

this this implies that the cost of one notebook is a and one pen is 5