If 60% of A's income is equal to 75% of B's income, then B's income is equal to x% of A's income. The value of x is :

Answer: Option C

According to the question,
⇒ 60 × $$\frac{A}{100}$$ = 75 × $$\frac{B}{100}$$
⇒ 4A = 5B
⇒ B = $$\frac{4}{5}$$A
⇒ A × $$\frac{x}{100}$$ = B (given)
⇒ A × $$\frac{x}{100}$$ = $$\frac{4}{5}$$A
⇒ x = 80