B. 33 years
Feedback 3 years ago, the ratio between the ages of Asha and Ragu = 3 : 4 (3x, 4x)
Praveen = Ragu + 6
Asha’s age, after 4 years = 25
Asha’s present age = 21 years
3x + 3 = 21
3x = 18
X = 6
Ragu’s present age = 4x + 3 = 27 years
Present age of Praveen = 27 + 6 = 33 years