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:
A) 12 years  B) 15 years  C) 19 and half  D) 21 years  E) 23 years
Let the present ages of Arun and Deepak be 4x years and 3x years respectively. Then,   4x + 6 = 26   4x = 20   x = 5.   Deepak's age = 3x = 15 years.   Answer: Option 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 ?