Question : Directions: Three of the following four triads are alike in a certain way as they are formed by performing the same mathematical operations among themselves and thus form a group. Which triad does not belong to that group?
Option 1: 11 : 21 : 121
Option 2: 2 : 3 : 4
Option 3: 7 : 15 : 49
Option 4: 9 : 17 : 81
Latest: SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL complete guide
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 7 : 15 : 49
Solution : Let's check the given options – First option: (11 : 21 : 121)→11 + (11 – 1) = 11 + 10 = 21; 11 2 = 121 Second option: (2 : 3 : 4)→2 + (2 – 1) = 2 + 1 = 3; 2 2 = 4 Third option: (7 : 15 : 49)→7 + (7 – 1) = 7 + 6 = 13 ≠ 15; 7 2 = 49 Fourth option: (9 : 17 : 81)→9 + (9 – 1) = 9 + 8 = 17; 9 2 = 81
Therefore, only the third option does not follow the pattern of the others. Hence, the third option is correct.
Candidates can download this ebook to know all about SSC CGL.
Answer Key | Eligibility | Application | Selection Process | Preparation Tips | Result | Admit Card
Question : Directions: Three of the following four triads are alike in a certain way as they are formed by performing the same mathematical operations among themselves and thus form a group. Which triad does NOT belong to that group?
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile