Question

A number when decreased by 10% gives 72 . The number is

Answer 1

let the required no. be x
decreased by 10%=100-10=90
90%of a number is 72
so the required no. is 90/100*x=72
x=72/100*90
x=8*10=80

#hopethishelps

Answer 2

the ans should be 80