Question : Direction: In the following question, select the related number from the given alternatives.
29 : 71 :: 79 : ?
Option 1: 120
Option 2: 192
Option 3: 197
Option 4: 131
Correct Answer: 131
Solution : Given:
29 : 71 :: 79 : ?
In the first pair, there are exactly 9 prime numbers between 29 and 71.
Similarly, between 79 and 131, there are also exactly 9 prime numbers.
Hence, fourth option is correct.
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