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
81
If 18 : 20 :: 276 : x, find x.
Answer:
306.67
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (20 * 276) / 18. 3. Compute x = 306.67.
82
If 15 : 20 :: 200 : x, find x.
Answer:
266.67
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (20 * 200) / 15. 3. Compute x = 266.67.
83
If 13 : 22 :: 224 : x, find x.
Answer:
379.08
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (22 * 224) / 13. 3. Compute x = 379.08.
84
If 12 : 19 :: 180 : x, find x.
Answer:
285.0
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (19 * 180) / 12. 3. Compute x = 285.0.
85
If 14 : 22 :: 156 : x, find x.
Answer:
245.14
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (22 * 156) / 14. 3. Compute x = 245.14.
86
If 13 : 18 :: 168 : x, find x.
Answer:
232.62
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (18 * 168) / 13. 3. Compute x = 232.62.
87
If 17 : 20 :: 134 : x, find x.
Answer:
157.65
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (20 * 134) / 17. 3. Compute x = 157.65.
88
If 17 : 19 :: 190 : x, find x.
Answer:
212.35
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (19 * 190) / 17. 3. Compute x = 212.35.
89
If 17 : 18 :: 246 : x, find x.
Answer:
260.47
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (18 * 246) / 17. 3. Compute x = 260.47.
90
If 12 : 20 :: 124 : x, find x.
Answer:
206.67
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (20 * 124) / 12. 3. Compute x = 206.67.