Question : Directions: In the following question, find the odd number pair from the given alternatives.
Option 1: 11
Option 2: 17
Option 3: 19
Option 4: 21
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Correct Answer: 21
Solution : Let's check the options – First option: 11→The factors of 11 are 1 and 13. So, 11 is a prime number. Second option: 17→The factors of 17 are 1 and 17. So, 17 is a prime number. Third option: 19→The factors of 19 are 1 and 19. So, 19 is a prime number. Fourth option: 21→The factors of 21 are 1, 3, 7 and 21. So, 21 is not a prime number.
Hence, the fourth option is correct.
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Option 1: 13
Option 3: 29
Option 4: 87
Question : Directions: In the following question, find the odd number from the given alternatives.
Option 1: (11, 121)
Option 2: (13, 169)
Option 3: (19, 391)
Option 4: (21, 441)
Option 1: 16
Option 2: 4
Option 3: 2
Option 4: 36
Option 1: 8 – 11
Option 2: 1 – 4
Option 3: 7 – 10
Option 4: 3 – 5
Option 1: 1, 0.75, 0.5, 1.25
Option 2: 4, 3, 2, 5
Option 3: 1, 4, 2, 8
Option 4: 2, 1.5, 1, 2.5
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