30% of a number when subtracted from 91, gives the number itself. Find the number.

Answer: Option D

Let the number be x
According to the question,
91 - $$\frac{30\text{x}}{100}$$ = x
9100 - 30x = 100x
Or, 9100 = 130x
Or, x = $$\frac{9100}{130}$$
Hence, x = 70