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
111
Simplify: 4^3 - 2^5 + sqrt(144).
Answer:
44
Solve powers and roots: 4^3 = 64, 2^5 = 32, and sqrt(144) = 12. Equation: 64 - 32 + 12 = 32 + 12 = 44.
112
Find the value of: 10% of 500 + 15% of 200.
Answer:
80
Calculate percentages: 10% of 500 = 50. And 15% of 200 = 30. Addition: 50 + 30 = 80.
113
Evaluate: (15 + 5) * (18 / 6) - 10.
Answer:
50
Brackets first: (15 + 5) = 20 and (18 / 6) = 3. Equation: 20 * 3 - 10 = 60 - 10 = 50.
114
Simplify: 1.2 * 0.5 + 3.6 / 0.9.
Answer:
4.6
Multiplication and Division: 1.2 * 0.5 = 0.6, and 3.6 / 0.9 = 4. Equation: 0.6 + 4 = 4.6.
115
Find the value of: 3/4 of 24 + 5/6 of 30.
Answer:
43
Calculate 'of' logic: 3/4 * 24 = 18. And 5/6 * 30 = 25. Addition: 18 + 25 = 43.
116
Evaluate: 18 * 4 + 15 / 5 - 20.
Answer:
55
Multiplication and Division: 18 * 4 = 72, and 15 / 5 = 3. Equation: 72 + 3 - 20 = 75 - 20 = 55.
117
Simplify: 108 / 36 * 4 + 2.5 * 4.
Answer:
22
Division and Multiplication: 108 / 36 = 3, then 3 * 4 = 12. And 2.5 * 4 = 10. Equation: 12 + 10 = 22.
118
Find the value of: 14 + 6 * 2 / 3 - 5.
Answer:
13
Division/Multiplication left-to-right: 6 * 2 = 12, then 12 / 3 = 4. Equation: 14 + 4 - 5 = 18 - 5 = 13.
119
Evaluate: 25 * 3 - 45 / 9 + 12.
Answer:
82
Follow BODMAS: Division (45/9 = 5), Multiplication (25*3 = 75). Equation: 75 - 5 + 12 = 70 + 12 = 82.
120
Simplify the expression: 45 - [38 - (60 / 3 - 6 - 9)].
Answer:
12
Inner bracket first: (20 - 6 - 9) = 5. Outer bracket: [38 - 5] = 33. Finally: 45 - 33 = 12.