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
1
If 12 : 21 :: 208 : x, find x.
Answer:
364.0
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (21 * 208) / 12. 3. Compute x = 364.0.
2
If 16 : 21 :: 216 : x, find x.
Answer:
283.5
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (21 * 216) / 16. 3. Compute x = 283.5.
3
If 15 : 22 :: 158 : x, find x.
Answer:
231.73
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (22 * 158) / 15. 3. Compute x = 231.73.
4
If 18 : 21 :: 220 : x, find x.
Answer:
256.67
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (21 * 220) / 18. 3. Compute x = 256.67.
5
If 14 : 21 :: 212 : x, find x.
Answer:
318.0
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (21 * 212) / 14. 3. Compute x = 318.0.
6
If 18 : 22 :: 234 : x, find x.
Answer:
286.0
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (22 * 234) / 18. 3. Compute x = 286.0.
7
If 14 : 20 :: 198 : x, find x.
Answer:
282.86
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (20 * 198) / 14. 3. Compute x = 282.86.
8
If 13 : 20 :: 126 : x, find x.
Answer:
193.85
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (20 * 126) / 13. 3. Compute x = 193.85.
9
If 17 : 19 :: 260 : x, find x.
Answer:
290.59
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (19 * 260) / 17. 3. Compute x = 290.59.
10
If 17 : 20 :: 204 : x, find x.
Answer:
240.0
Step-by-step solution: 1. Use the property of proportions: a/b = c/x. 2. Cross-multiply: x = (b * c) / a = (20 * 204) / 17. 3. Compute x = 240.0.