Question : Directions: In the following question, select the one that is different from the other three alternatives.
Option 1: (47, 49)
Option 2: (29, 31)
Option 3: (5, 7)
Option 4: (11, 13)
Correct Answer: (47, 49)
Solution :
Let's check the options —
First option:
(47, 49); 47 is a prime number while 49 is a composite number. This option is different from the other options.
Second option:
(29, 31); Both 29 and 31 are consecutive prime numbers.
Third option:
(5, 7); Both 5 and 7 are consecutive prime numbers.
Fourth option:
(11, 13); Both 11 and 13 are consecutive prime numbers.
Therefore, the first option is different from the others as it contains prime and composite numbers. Hence, the first option is correct.
