Question

a basket contains two dozen mangoes 25% of the mangoes are bad find the number of good mangoes

Answer 1

two dozen mean 24mangoes.
bad mangoes=24×25/100=6
hence good mangoes= 24-6=18

Answer 2

So, a dozen is 12.  That means that two dozen is going to be 12*2 which is 24.  For the percentage, percentages are a part of a whole.  25% is a quarter of all the mangos.  So you take the percentage and "scoot scoot" the decimal point, as my teacher says, to the left.  When you do that, you get 0.25.  Take 0.25 and multiply it by two dozen (24) , you get 6 when you do this.  Then you take 24 and subtract six to get the amount of good mangos.  When you subtract you get 18.  So the amount of good mangos is 18.  I hope this helps!