In order to calculate the original price of the radio we just have to do a rule of thirds, we know that the price payed was $50, and that it was 10% off from the original price, now we just have to to a simple rule of thirds, if $50 is the 90% how much is the 100%?
There are 1130 females. There are 1370 males. What I did was take 2500 and subtracted 240 from it. I got 2260 and then divided that number by 2 and got the number of females. Then I took that number and added 240 to it and got the number of males.