Question

5 pencils and 7 pens together cost rs. 50, whereas 7 pencils and 5 pens together cost rs.46. the cost of two pencils and that of three pens.

Answer 1

Answer:

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Step-by-step explanation:

Let pencil be x and let pen be y

5x+7y=50

7x+5y=46

Multiply the first equation by 7

35x+49y=350

Multiply the second equation by 5

35x+25y=230

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

substituting in the second equation we get x is 3 rupees