Question : Directions: In the following question a series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
8, 27, 125, 343, ?
Option 1: 1000
Option 2: 729
Option 3: 1331
Option 4: 1728
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Correct Answer: 1331
Solution :
Given:
8, 27, 125, 343, ?
Let's apply the pattern –
(2)
3
= 8→(2 is a prime number)
(3)
3
= 27→(3 is a prime number)
(5)
3
= 125→(5 is a prime number)
(7)
3
= 343→(7 is a prime number)
(11)
3
= 1331→(11 is a prime number)
So, the required number is 1331. Hence, the third option is correct.
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