Question

the marks scored by a student in five subject are 80, 75 ,62 ,50, and how much should he score in the 6th subject to make his average 74?​

Answer 1

i think you have missed 5th subject's marks here so let it be 'y'

let the marks of 6th subject be 'x'

so, (x+y+80+75+62+50)/6=74

x+y+267=444

x=444-267-y

x=177-y

insert the value of y to get the answer for x