As we are to find out 30% of 250 then well do it like this
30/100 x 250 (of means multiplication so 30% of 250)
=15 x 5 (we have got this after we had cut the three numbers 30,100 and 250 this no more can be cut so we multiply it directly)
=75 ANSWER
So 75 is 30% of 250 !
I hope now u might have understood becoz three anwers r given but if not then please ask!
i hope my answer helps!