13 is 25% of what number
13 is 25% of the number 52.13/25%(or .25) = 52 >>> 13/0.25 = 52I divided because if you multiply, you get 3.25, which isn't what your looking for. :D
hack way25%=1/413 is 1/4 of something1/4 times 4=4/4=1therefor13 times 4=1 whole13*4=52the original number is 52