IBPS SO Prelims Exam Model Paper 10

Here mathematical operations are followed in every step.
Step 1: First digit fourth box is subtracted by the first digit of the first box, And the second digit of the fourth box is added with the second digit of the first box
i.e., 9 - 2 = 7 and 4 + 1 = 5 implies the first box of step 1 contains 75 and so on...
Step 2: Subtraction of corresponding elements.
i.e., 75 - 33 = 42 and 67 - 33 = 34
Step 3: Squaring each digit in the first and second box then add both squared numbers of each box.
i.e., 42 = 16, 22 = 4, 16 + 4 = 20, implies first box of step 3 contains 20 and so on...
Step 4: Product of (sum of both digits in box 1 and the product of both digits in box 2.)
i.e., (2 + 0) × (2 × 5) = 20 implies the box of step 4 contains 20.Sum of all the digits in step 3: 2 + 0 + 2 + 5 = 9
Hence, 9 is the correct answer.