Mathematics/General Ability MCQs
Topic Notes: Mathematics/General Ability
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
131
Identify the odd one out in the series: 19, 38, 57, 76, 95, 116, 133
Answer:
116
Step 1: Examine the numbers: 19, 38, 57, 76, 95, 116, 133. Step 2: Identify the common factor. All numbers are multiples of 19. Step 3: Following 95, the next multiple is 114. The number 116 is the odd one out.
132
Find the odd man out: 16, 32, 48, 64, 80, 98, 112
Answer:
98
Step 1: Analyze the sequence: 16, 32, 48, 64, 80, 98, 112. Step 2: These numbers are multiples of 16. Step 3: The multiple of 16 after 80 is 96. Because 98 is present instead, it is the odd man out.
133
Which number does not belong to the group: 22, 44, 66, 88, 110, 134, 154
Answer:
134
Step 1: Review the series: 22, 44, 66, 88, 110, 134, 154. Step 2: Recognize the pattern as consecutive multiples of 22. Step 3: The next multiple of 22 after 110 is 132. The number 134 breaks the pattern.
134
Find the odd man out in the series: 25, 50, 75, 100, 125, 155, 175
Answer:
155
Step 1: Look at the numbers: 25, 50, 75, 100, 125, 155, 175. Step 2: Identify that these are multiples of 25. Step 3: The next multiple after 125 should be 150. Since 155 is given, it is the odd man out.
135
Identify the odd one out: 15, 30, 45, 60, 75, 95, 105
Answer:
95
Step 1: Analyze the sequence: 15, 30, 45, 60, 75, 95, 105. Step 2: The pattern is clearly multiples of 15. Step 3: The multiple after 75 is 90. Because 95 is given, it is not a multiple of 15 and is the odd man out.
136
Find the odd man out: 17, 34, 51, 68, 85, 104, 119
Answer:
104
Step 1: Observe the given series: 17, 34, 51, 68, 85, 104, 119. Step 2: Look at the pattern. These numbers are sequential multiples of 17. Step 3: The expected term after 85 is 102. The number 104 breaks this sequence and is the odd man out.
137
Which number is the odd man out: 13, 26, 39, 52, 65, 76, 91
Answer:
76
Step 1: Analyze the series: 13, 26, 39, 52, 65, 76, 91. Step 2: Check for a common factor. The numbers are multiples of 13. Step 3: The multiple of 13 after 65 is 78. Since 76 is not divisible by 13, it is the odd man out.
138
Find the odd number in the series: 24, 36, 48, 60, 72, 86, 96
Answer:
86
Step 1: Examine the numbers: 24, 36, 48, 60, 72, 86, 96. Step 2: Note that these are consecutive multiples of 12. Step 3: Following 72, the next multiple of 12 is 84. The number 86 is presented instead, making it the odd man out.
139
Identify the odd one out: 18, 27, 36, 45, 54, 65, 72
Answer:
65
Step 1: Look at the sequence: 18, 27, 36, 45, 54, 65, 72. Step 2: Notice that the numbers form a series of multiples of 9. Step 3: The number 65 is not a multiple of 9 (the multiple should be 63). Thus, 65 is the odd man out.
140
Find the odd man out: 14, 21, 28, 35, 42, 48, 56
Answer:
48
Step 1: Analyze the series: 14, 21, 28, 35, 42, 48, 56. Step 2: Identify the divisibility pattern. Almost all numbers are multiples of 7. Step 3: The number 48 is not divisible by 7 (the multiple should be 49). Therefore, 48 is the odd man out.