The average marks of Rinku, Mohit and Suman is 65. Rinku's marks is 18 less than Alok and 12 more than Mohit. If Alok got 38 marks more than the average marks of Rinku, Mohit and Suman. Then what is the sum of marks of Mohit and Suman?

Let Rinku = R, Mohit = M, Suman = S. Average = 65 means R + M + S = 195. R = M + 12 (R is 12 more than M). Alok = R + 18 = M + 30. Alok's marks = 65 + 38 = 103. So M + 30 = 103, meaning M = 73. Then R = 73 + 12 = 85. S = 195 - 85 - 73 = 37. Sum of Mohit and Suman = 73 + 37 = 110. Option A (124) is incorrect. Option C (108) is incorrect. Option D (120) is incorrect.