40% of what number is 68?
0.4 x = 68x = 68/0.4x = 170check:0.4 170 = 68
0.40% of a number is 6840% of n = 6840% = \(\frac{40}{100}\) = 0.40.4 × n = 68\(\frac{0.4n}{0.4}\) = \(\frac{68}{0.4}\)n = 17040% of 170 is 68