At a fitness center, the number of male members increases by 20% to 96 and the number of female members decreases by 30% to 84. Find the overall increase or decrease in the total number of members.
6 answers
I got 60 is the increase and 30 is the decrease.
males increase ... 96 - (96 / 120%)
females decrease ... (84 / 70%) - 84
females decrease ... (84 / 70%) - 84
so is it right?
You can see that your answers do not agree with R_Scott's. Too bad you didn't see fit to show your work ...
male members increases by 20% to 96
That is, 1.20m = 96
m = 80
So, males increased by 16
female members decreases by 30% to 84
That is 0.70f = 84
f = 120
So, females decreased by 36
The net change was thus +16-36 = -20
male members increases by 20% to 96
That is, 1.20m = 96
m = 80
So, males increased by 16
female members decreases by 30% to 84
That is 0.70f = 84
f = 120
So, females decreased by 36
The net change was thus +16-36 = -20
I know what I did wrong, thanks for telling me.
Actually, I don't get how you got 1.20= 96. What did you do to get that answer?
2 answers