The above graph represents the salary, expenditure, tax and savings (in rupees)details of the persons A, B, C and D per month.
Study the graph and answer the question.
Tax as the percentage of salary is least in case of:

From the graph,

The tax as a percentage of salary for A = $$\frac{450}{12000}\times100$$ = 3.75%

The tax as a percentage of salary for B = $$\frac{950}{18000}\times100$$ = 5.278%

The tax as a percentage of salary for C = $$\frac{550}{15000}\times100$$ = 3.67%

The tax as a percentage of salary for D = $$\frac{600}{16000}\times100$$ = 3.75%

$$\therefore\ $$The tax as a percentage of salary is least for C

Hence, the correct answer is Option B