Question

The cost of 2 pens and 5 pencils is Rs.150. Write a linear equation in two variables to represent the statement. Also find the cost of 1 pencil if the cost of 1 pen is Rs.30​

Answer 1

Answer:

the cost of one pencil is rs 18

Step-by-step explanation:

let the cost of one pen be X and the cost of one pencil be y

y

then the equation will be

2x+5y= 150

the cost of one pen is 30

so, equation becomes

2*30+ 5y= 150

60+5y= 150

5y= 150-60

5y=90

y=18

therefore, the cost of one pencil is 18

Answer 2

Step-by-step explanation:

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