If 300 is subtracted from a number then result becomes 62\(\frac{1}{2}\)% of the number. Find the original number.

800

12\(\frac{1}{2}\)% = \(\frac{1}{8}\)

62\(\frac{1}{2}\)% = 12\(\frac{1}{2}\)% × 5 = \(\frac{5}{8}\)

It means, if

8 (original) - 3 (subtraced) = 5 (62\(\frac{1}{2}\)% of original)

                   ⇓

                   300 (given= × 100)

Therefore, Original no. is = 8 × 100 = 800