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: 17 – 31
Option 2: 13 – 25
Option 3: 15 – 27
Option 4: 9 – 15
Latest: SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL complete guide
Correct Answer: 13 – 25
Solution : The pattern followed here is that the second number is obtained by subtracting 3 from twice the first number
Let's check each option –
First option:
(17 – 31): 17 × 2 – 3 = 34 – 3 = 31
Second option:
(13 – 25): 13 × 2 – 3 = 26 – 3 = 23 ≠ 25
Third option:
(15 – 27): 15 × 2 – 3 = 30 – 3 = 27
Fourth option:
(9 – 15): 9 × 2 – 3 = 18 – 3 = 15
So, the second option does not follow the pattern. Hence, the
second option
is correct.
Related Questions
Know More about
Staff Selection Commission Combined Grad ...
Answer Key | Eligibility | Application | Selection Process | Preparation Tips | Result | Admit Card
Get Updates Brochure
Your Staff Selection Commission Combined Graduate Level Exam brochure has been successfully mailed to your registered email id “”.
