Question

3.
1 dozen pencils and 8 erasers cost Rs 28, while 4 pencils and 16 erasers cost Rs 27. HOW
much will 2 erasers and 3 pencils cost?
As part of his summer internshin in sales nevie nesi​

Answer 1

Step-by-step explanation:

let cost of one pencil is x and eraser y

12x+8y=28

4x+16y=27(3)

• 12x+8y=28
• 12x+48y=81
• -40y=-59
• y=59/40
• y=14.75
• x=28-8(14.75)/12
• x=18.17
• costof 2 erasers =2(14.75)=29.5
• cost of 3 pencils =3(18.17)=54.51

Answer 2

Answer:

let the cost of 1 pencil be x and the cost of 1 eraser be y

according to the conditions

Step-by-step explanation:

12x+8y=28

4x+16y=(27)3

12x+8y=28

4x+16y=81

-40y=59

y=59/40

y=14.75

x=28-8(14.75)/12

x=18.17

hope it helps you....