Aman spends 10% of his salary on food. He spends 20% of the remaining part on fuel. If he is left with ₹4680, then what is his salary?

let the salary be 100x

he spends 10% of his salary for food

that means

$$100x\times\ \frac{10}{100}$$

he spends 10x rupees for food

so the remaining amount is 90x

from this remaining amount 20% is spent for fuel

that means $$\frac{20}{100}\times90x$$=18x

remaining is 100x-(18x+10x)

=72x

given that remaining amount is eual to 4680

72x=4680

x=65

therefore the salary is 100x so 100(65)

6500

hence answer is option D