At present, the ratio between the ages of Arun and Deepak is 4:5. After 5 years, Arun's age will be 25 years. What is the age of Deepak at present?	Select:
A) 18 B) 20 C) 25 D) 23 E) 22
Let the present ages of Arun and Deepak be 4x and 3x years respectively.   Then, 4x + 5 = 25 =&gt; x = 5   Deepak's age = 5x = 25 years.   Answer: 25
<result>C</result>
At present, the ratio between the ages of Arun and Deepak is 4:5. After 5 years, Arun's age will be 25 years. What is the age of Deepak at present?