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
11
If 12 : 22 :: 292 : x, find x.
Answer:
535.33
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (22 * 292) / 12. 3. Compute x = 535.33.
12
If 17 : 20 :: 274 : x, find x.
Answer:
322.35
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (20 * 274) / 17. 3. Compute x = 322.35.
13
If 13 : 19 :: 252 : x, find x.
Answer:
368.31
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (19 * 252) / 13. 3. Compute x = 368.31.
14
If 17 : 22 :: 162 : x, find x.
Answer:
209.65
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (22 * 162) / 17. 3. Compute x = 209.65.
15
If 14 : 19 :: 254 : x, find x.
Answer:
344.71
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (19 * 254) / 14. 3. Compute x = 344.71.
16
If 18 : 21 :: 290 : x, find x.
Answer:
338.33
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (21 * 290) / 18. 3. Compute x = 338.33.
17
If 18 : 19 :: 122 : x, find x.
Answer:
128.78
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (19 * 122) / 18. 3. Compute x = 128.78.
18
If 15 : 18 :: 172 : x, find x.
Answer:
206.4
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (18 * 172) / 15. 3. Compute x = 206.4.
19
If 16 : 22 :: 230 : x, find x.
Answer:
316.25
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (22 * 230) / 16. 3. Compute x = 316.25.
20
If 16 : 21 :: 146 : x, find x.
Answer:
191.62
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (21 * 146) / 16. 3. Compute x = 191.62.