Question

If 5 pencils and 7 pens together cost Rs50, Where as 7 pencils and 5

pens​

Answer 1

Answer:

Let pencil be x and let pen be y

5x+7y=50

7x+5y=46

multiply first equation by 7

35x+49y = 350

multiply second equation by 5

35x+25y=230

solving them we get 24y=120 which gives y is 5 rupees

substituting in second equation we get x is 3 rupees