Question

2 pencils and 5 pens cost supees 27, but 5
pencils and 2pens
cost rupees 15. Find the coast of pencils and pens​

Answer 1

Answer:

x= 1 rs

y= 5 rs

Step-by-step explanation:

2x + 5y = 27 ×2

5x + 2y = 15 × 5

= 4x + 10y = 54

25x + 10y = 75

= -21x = -21

x = 1

2(1) + 5y = 27

5y= 25

= y = 5

Answer 2

Answer:

let the cost of 1 pencils is x

,,,,,,,,,,,,,1 pen is y

now, make the eq

2x + 5y = 27

5x + 2y = 15

by elimination method

5( 2x +5y = 27)

2(5x + 2y = 15)

10x + 25y = 135

10x + 4y = 30