Question

there are 80 tiffin boxes in a lunch room.25 of the tiffin boxes are white in color. What percent of tiffin boxes are white

Answer 1

25/80 x 100% = 31.25%

therefore, 31.25% of tiffin boxes are white.

P.S. I didn't explain this question thoroughly, but, I think you get the basic idea of what needs to be done.