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
71
If 15 : 19 :: 116 : x, find x.
Answer:
146.93
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (19 * 116) / 15. 3. Compute x = 146.93.
72
If 13 : 20 :: 266 : x, find x.
Answer:
409.23
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (20 * 266) / 13. 3. Compute x = 409.23.
73
If 14 : 20 :: 268 : x, find x.
Answer:
382.86
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (20 * 268) / 14. 3. Compute x = 382.86.
74
If 15 : 19 :: 256 : x, find x.
Answer:
324.27
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (19 * 256) / 15. 3. Compute x = 324.27.
75
If 15 : 20 :: 270 : x, find x.
Answer:
360.0
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (20 * 270) / 15. 3. Compute x = 360.0.
76
If 18 : 22 :: 164 : x, find x.
Answer:
200.44
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (22 * 164) / 18. 3. Compute x = 200.44.
77
If 18 : 20 :: 136 : x, find x.
Answer:
151.11
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (20 * 136) / 18. 3. Compute x = 151.11.
78
If 13 : 18 :: 98 : x, find x.
Answer:
135.69
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (18 * 98) / 13. 3. Compute x = 135.69.
79
If 18 : 18 :: 248 : x, find x.
Answer:
248.0
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (18 * 248) / 18. 3. Compute x = 248.0.
80
If 18 : 19 :: 192 : x, find x.
Answer:
202.67
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (19 * 192) / 18. 3. Compute x = 202.67.