a person spend 564 rupees in buying pens and pencils if the cost of the each pen is 7 rupees and the each pencil is 3 rupees and if the total number of things bought was 108 how many of each type did he buy
Answers
Answered by
15
No of Pen = x
No of Pencil = y
x + y = 108
x = 108 - y
7(108-y) + 3y = 564
756 - 7y + 3y = 564
4y = 192
y = 192/4 = 48
x = 108 - 48 = 60
No of pens = 60
No of pencils = 48
Similar questions