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
91
If 13 : 21 :: 140 : x, find x.
Answer:
226.15
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (21 * 140) / 13. 3. Compute x = 226.15.
92
If 13 : 22 :: 154 : x, find x.
Answer:
260.62
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (22 * 154) / 13. 3. Compute x = 260.62.
93
If 17 : 18 :: 106 : x, find x.
Answer:
112.24
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (18 * 106) / 17. 3. Compute x = 112.24.
94
If 14 : 18 :: 240 : x, find x.
Answer:
308.57
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (18 * 240) / 14. 3. Compute x = 308.57.
95
If 16 : 20 :: 272 : x, find x.
Answer:
340.0
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (20 * 272) / 16. 3. Compute x = 340.0.
96
If 18 : 21 :: 150 : x, find x.
Answer:
175.0
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (21 * 150) / 18. 3. Compute x = 175.0.
97
If 18 : 19 :: 262 : x, find x.
Answer:
276.56
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (19 * 262) / 18. 3. Compute x = 276.56.
98
If 15 : 19 :: 186 : x, find x.
Answer:
235.6
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (19 * 186) / 15. 3. Compute x = 235.6.
99
If 14 : 21 :: 142 : x, find x.
Answer:
213.0
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (21 * 142) / 14. 3. Compute x = 213.0.
100
If 16 : 18 :: 104 : x, find x.
Answer:
117.0
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (18 * 104) / 16. 3. Compute x = 117.0.