At present, the ratio between the ages of Arun and Deepak is 4:3. After 6 years, Arun's age will be 30 years. What is the age of Deepak at present? Options:
A) 77 years  B) 15 years  C) 66 years  D) 18 years  E) 55 years
Let the present ages of Arun and Deepak be 4x and 3x years respectively.   Then, 4x + 6 = 30 =&gt; x = 6   Deepak's age = 3x = 18 years.   Answer: 18 years
<result>D</result>
At present, the ratio between the ages of Arun and Deepak is 4:3. After 6 years, Arun's age will be 30 years. What is the age of Deepak at present?