Find the next number in the series: 1, 2, 6, 24, 120, ? MCQ with Answer and Explanation

Find the next number in the series: 1, 2, 6, 24, 120, ?
A. 600
B. 840
C. 720
D. 640
Answer: Option C
Solution (By JKSSB Mock Tests)
Multipliers are 2, 3, 4, 5; next multiplier is 6. 120×6=720.

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Practice More Logical Reasoning Questions

Question #1
If 'NIGHT' is coded as 'OJHIU', then 'DAY' is coded as ?
A. EBZ
B. EAY
C. ECZ
D. EBY

Correct Answer: Option A


Explanation:
Each letter is shifted one place forward: D→E, A→B, Y→Z = EBZ.

This question belongs to: Reasoning Logical Reasoning
Question #2
A person walks 8 km towards North, then turns right and walks 6 km, then turns right and walks 8 km. In which direction is he from the starting point?
A. West
B. South
C. East
D. North

Correct Answer: Option C


Explanation:
North 8, right East 6, right South 8. Net East 6 km.

This question belongs to: Reasoning Logical Reasoning
Question #3
In a certain code, '247' means 'spread red carpet', '256' means 'dust one carpet' and '234' means 'one red carpet'. Which digit in the code means 'dust'?
A. 6
B. 3
C. 5
D. 2

Correct Answer: Option A


Explanation:
'carpet' common all =2. 'red' first and third =4. 'one' second and third =3. Remaining in second 5 or 6; 'dust' =5 or 6, from options D 6 if 5 is other.

This question belongs to: Reasoning Logical Reasoning