Question : Directions: In the following question, four number pairs are given. In each pair, the number on the left side of (–) is related to the number on the right side of (–) with some Logic/Rule /Relation. Three pairs are similar based on the same Logic/Rule/Relation. Select the odd one out from the given alternatives. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g.13 – operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)

Option 1: 225 – 5733

Option 2: 169 – 7912

Option 3: 361 – 9786

Option 4: 289 – 3194

Question : ________ changes each time it is installed to avoid detection by antivirus software.

Option 1: Polymorphic virus

Option 2: Worm

Option 3: Logic bomb

Option 4: Trojan horse