In the following question, four number pairs are given. The number on left side of ( – ) is related to the number on the right side of ( – ) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

• A. 13 – 26
• B. 15 – 30
• C. 17 – 34
• D. 19 – 31