Question

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

Answer 1

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%

answer is 39%