At present, the ratio between the ages of Arun and Deepak is 4 : 3. After 6 years, Arun's age will be 26 years. What is the age of Deepak at present ?  Choose the correct choice from the following choices:
A) 12 years B) 15 years C) 17 years D) 19 years E) 21 years
Let the present ages of Arun and Deepak be 4x years and 3x years respectively.   4x + 6 = 26 4x = 20   x = 5.   Deepak's age = 3x = 15 years.   Answer: 15 years
<result>B</result>
At present, the ratio between the ages of Arun and Deepak is 4 : 3. After 6 years, Arun's age will be 26 years. What is the age of Deepak at present ?