The age of Jaya 10 years ago is equal to Ritu's present age. The sum of Jaya's age 8 years hence from today and Ritu's age 12 years ago is 90 years. Then what was the age of Neha 13 years ago from now if Neha is 9 years younger than Ritu?

Let Jaya's present age = J, Ritu's present age = R. From statement 1: J - 10 = R, so J = R + 10. From statement 2: (J + 8) + (R - 12) = 90, so J + R - 4 = 90, giving J + R = 94. Substituting J = R + 10: (R + 10) + R = 94, so 2R = 84, giving R = 42. Then J = 52. Neha is 9 years younger than Ritu, so Neha's present age = 42 - 9 = 33. Neha's age 13 years ago = 33 - 13 = 20. Option A is correct.