Question

3).convert the following situation into linear equations in two variables. The cost of three pens and 4 pencils is Rs 50. The cost of 4 pens and 3 pencils is Rs 62


step by step​

Answer 1

Answer:

Step-by-step explanation:

let the cost of one pen and pencil be x and y respectively.

therefore,3x + 4y = 50

4x + 3y = 62

then you can solve the equation using any of solving methods.

Answer 2

Answer:

Let the cost of pen be X and the cost of pencil is Y.

Then, according to question,

3X + 4Y = 50 ------- (i)

and 4X + 3Y = 62 -------(ii)

These are the two required equations.