The salaries of Vipin and Dinesh are in the ratio 5 : 8. If the salary of each is increased by ₹ 4,800, then new ratio becomes 7 : 10. What is Vipin's salary ?

Given, ratio of salaries of Vipin and Dinesh = 5 : 8

Let the salaries of Vipin and Dinesh are 5p and 8p respectively.

If the salary of each is increased by ₹ 4,800, then new ratio becomes 7 : 10.

$$\Rightarrow$$  $$\frac{5p+4800}{8p+4800}=\frac{7}{10}$$

$$\Rightarrow$$  $$50p+48000=56p+33600$$

$$\Rightarrow$$  $$6p=14400$$

$$\Rightarrow$$  $$p=2400$$

$$\therefore\ $$Salary of Vipin = 5p = 5 x 2400 = ₹ 12,000

Hence, the correct answer is Option B