Two notebooks and three pens totally cost Rs.44. Six notebooks and five pens costs Rs. 116. What is the total cost of three notebooks and three pens?
Answers
Answered by
0
Step-by-step explanation:
let notebook be x and pens be y
:. case 1 2x + 3y= 44
and case 2 6x+5y=116
multiply case 1 by 3
=> 6x+9y= 132
now subtract case 2 from this
=> 6x+9y-6x-5y= 132-116
=>4y=16
:.y=4
put y=r in case 1
2x +12= 44
2x= 32
:. x= 16
now 3x+3y
3×4+ 3×16
12+48
= 60
therefore cost of three pens and three notebook is 60 rupees
follow
Answered by
2
Step-by-step explanation:
Refer to the attachment
hope it will help you a lot
Attachments:
Similar questions