The ratio of the present age of Manoj to that of Vinod is 3 : 11. Vinod is 12 years younger than Rehana. Rehana's is age after 7 year will be 85 years. What is the present age of Manoj's is father who is 25 years old than Manoj ?

Working backwards: Rehana's age after 7 years = 85, so her present age = 85-7 = 78. Vinod is 12 years younger than Rehana, so Vinod's present age = 78-12 = 66. Manoj:Vinod = 3:11, so 3x + 11x = 66 gives x = 4.411 (not integer). Wait - the ratio is of their ages, not sum. If Vinod = 11x = 66, then x = 6, so Manoj = 3×6 = 18. Manoj's father is 25 years older than Manoj, so father's age = 18+25 = 43. Options B, C, D, and E are incorrect calculations.