Exams › SSC CGL (Prelims) › General

Which group does not match the pattern?

1. 6, 18, 54
2. 4, 12, 36
3. 5, 15, 40
4. 7, 21, 63

Correct answer: 5, 15, 40

Solution

In A, B, and D, each number is multiplied by 3 to get the next: 6→18→54, 4→12→36, 7→21→63. In C, 5→15 follows ×3, but 15→40 does not; it should be 45.

Related SSC CGL (Prelims) General questions

• What comes in place of (?) in the series: 2, 6, 18, 54, ?
• What comes next? 8, 20, 44, 92, ?
• One number does not fit into the given factorial series. Identify it: 3, 6, 24, 120, 720, 800.
• What should come at the place of the question mark (?) in the following series? 2, 3, 8, 9, 26, 27, ?
• Choose the odd one out:
• Complete the pattern: 120, 96, 76.8, 61.44, ?

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