Ravinder invests ₹ 3,750 which is equal to 15% of his monthly salary in a medical insurance policy. Later he invests 25% and 8% of his monthly salary on a child education policy, and mutual funds, respectively. The total amount left with him is:

Let the monthly salary of Ravinder = M

Amount invested in medical insurance policy = ₹ 3,750

Percentage of amount invested in medical insurance policy = 15%

$$\Rightarrow$$  $$\frac{15}{100}$$M = 3750

$$\Rightarrow$$  M = 25000

Monthly salary of Ravinder = ₹ 25,000

Percentage of salary left with him after investing in medical insurance policy, child education policy and mutual funds = 100 - 15 - 25 - 8 = 52%

$$\therefore\ $$Total amount left with him = $$\frac{52}{100}\times25000$$ = ₹ 13,000

Hence, the correct answer is Option D