Question : Which of the following is a prime number?
Option 1: 54
Option 2: 42
Option 3: 68
Option 4: 89
Correct Answer: 89
Solution : As we know, prime numbers are numbers that have only two factors which are 1 and the number itself. Thus, there are 25 prime numbers between 1 and 100, i.e. 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97. Hence, the correct answer is 89.
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Question : Directions: Which number will replace the question mark (?) in the following number series? 34, 42, 50, 56, 62, 66,?
Option 1: 66
Option 2: 68
Option 3: 72
Option 4: 70
Question : Which is the largest two-digit prime number?
Option 1: 91
Option 2: 93
Option 3: 97
Option 4: 99
Question : Directions: Which number will replace the question mark (?) in the following number series? 52, 42, 34, 28,?
Option 1: 24
Option 2: 22
Option 3: 26
Option 4: 28
Question : Which of the following is the smallest ratio?
Option 1: 41 : 92
Option 2: 33 : 41
Option 3: 42 : 49
Option 4: 35 : 47
Question : Directions: Which number will replace the question mark (?) in the following number series? 16, 28, ?, 46, 52
Option 1: 38
Option 3: 36
Option 4: 40
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