Question

when 75% of a number is added to 75 ,the result is the number again,find the number

Answer 1

75x/100+75=x
75x/100=x-75
3x/4=x-75
3x=4(x-75)
3x=4x-300
3x-4x=-300
-x=-300
x=300

Answer 2

let the number be x
now according to question,75% of x +75=x
:75/100×x+75=x
:75x/100+75/1=x
:100x=75x+7500
:100x-75x=7500
:25x=7500
:x=7500/25
therefore x=300



hope
this
will
help
.