In the following question, four number pairs are given. In each pair the number on left side of (-) is related to the number of the right side of (-) with some Logic/Rule /Relation. Three pairs are similar on basis of 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 its 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)
Answer & explanation
Correct answer: option 1
The logic followed here is :
Ist number × 2 + 1 = Second number
1286 - 2578 ⇒ 1286 × 2 + 1 = 2573 ≠2578
3294 - 6589 ⇒ 3294 × 2 + 1 = 6589
1324 - 2649 ⇒ 1324 × 2 + 1 = 2649
3184 - 6369 ⇒ 3184 × 2 + 1 = 6369