DSSSB · Reasoning

In the following number-pairs, the second number is obtained by performing some mathematical operations on the first number. By which of the following numbers should X and Y be replaced so that the pattern followed between the two numbers on the left of :: is the same as the pattern followed between the two numbers on the right of ::? (Note: Operations must be performed on whole numbers, without breaking the numbers into their component digits. For example Take 13, operations on 13 like adding/subtracting/multiplying 13 can be done. Breaking 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

  1. X = 22 , Y = 69
  2. X = 20 , Y = 72
  3. X = 22 , Y = 71
  4. X = 19 , Y = 68
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