Question

The cost of 2 pencils and 3 erasers is ₹9 and the cost of 4 pencils and 6 erasers is ₹18. Find the cost of each pencil and eraser......... Please solve this problem I want step by step answers please ​

Answer 1

The Pair of Linear Equation formed were

2x + 3y = 9......(1 )

4x + 6y = 18.....(2)

Express Value of x in term of y from eq (1)

2x + 3y = 9

x = 9−3y/ 2

Now Substitute the value of x in eq (2)

4x + 6y = 18

4(9−3y)/2 +6y=18

18 - 6y + 6y = 18

18 = 18

Hope it helps...❤

Answer 2

Answer:

cannot be determined

Step-by-step explanation:

let the cost of pencil be x and that of eraser be y.

A/Q,

2x+3y=9-------------------------------------(i)

and,

4x+6y=18----------------------------------(ii)

taking 2 as common in (ii),

2x+3y=9-------------------------------------(iii)

since the 2 equations are same, they have infinitely many solutions