DSSSB · Reasoning

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

  1. X = 40, Y = 1368
  2. X = 37, Y = 1370
  3. X = 37, Y = 1375
  4. X = 37, Y = 1371
Answer and detailed solution are available in the protected study screen.
Register or login to attempt