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- Identify the first relation/pattern.
- Apply the same rule to the missing part.
- Reject options that break the rule.
Correct Answer: B
Correct Answer: B
Method / Topic: Series
The correct option preserves the same pattern.
Short Explanation
Detailed Explanation
Correct Answer: B
Method / Topic: Series
Observe the pattern carefully: each term is multiplied by 2 and then 1 is added. 4×2+1=9, 9×2+1=19, 19×2+1=39, 39×2+1=79. So the next term is 79×2+1=159. This is like doubling a quantity and adding one extra unit each time.
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Learn + Solve: Shortcut, Trap & Fast Route Click to view shortcut, steps, and common mistake
Shortcut used, common trap, and the fastest solving route
- Identify the first relation/pattern.
- Apply the same rule to the missing part.
- Reject options that break the rule.
Find the missing number in the series: 4, 9, 19, 39, 79, ?
Explanation
Correct Answer: B
Method / Topic: Series
The correct option preserves the same pattern.
Short Explanation
Detailed Explanation
Correct Answer: B
Method / Topic: Series
Observe the pattern carefully: each term is multiplied by 2 and then 1 is added. 4×2+1=9, 9×2+1=19, 19×2+1=39, 39×2+1=79. So the next term is 79×2+1=159. This is like doubling a quantity and adding one extra unit each time.
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