Area of a 25 inch TV screen is 300 in.² the area of a 40 inch TV screen is 768 in.² what area of the smaller screen is what percent of the area of the larger screen
so percent is parts out of 100 we want to find out 300/768 where the bottom number is 100 just divide it using a calulator and get 0.3906 that is 0.3906/1 make bottom number 100 multiply by 100/100 39.06/100 round to 39 39/100=39%
