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
31
Solve for x: 3x + 15 = 215.
Answer:
66.67
Step-by-step solution: 1. Subtract 15 from both sides: 3x = 200. 2. Divide both sides by 3: x = (200)/3. 3. x = 66.67.
32
Solve for x: 7x + 15 = 83.
Answer:
9.71
Step-by-step solution: 1. Subtract 15 from both sides: 7x = 68. 2. Divide both sides by 7: x = (68)/7. 3. x = 9.71.
33
Solve for x: 6x + 13 = 61.
Answer:
8.0
Step-by-step solution: 1. Subtract 13 from both sides: 6x = 48. 2. Divide both sides by 6: x = (48)/6. 3. x = 8.0.
34
Solve for x: 3x + 16 = 225.
Answer:
69.67
Step-by-step solution: 1. Subtract 16 from both sides: 3x = 209. 2. Divide both sides by 3: x = (209)/3. 3. x = 69.67.
35
Solve for x: 3x + 17 = 165.
Answer:
49.33
Step-by-step solution: 1. Subtract 17 from both sides: 3x = 148. 2. Divide both sides by 3: x = (148)/3. 3. x = 49.33.
36
Solve for x: 4x + 16 = 87.
Answer:
17.75
Step-by-step solution: 1. Subtract 16 from both sides: 4x = 71. 2. Divide both sides by 4: x = (71)/4. 3. x = 17.75.
37
Solve for x: 6x + 15 = 151.
Answer:
22.67
Step-by-step solution: 1. Subtract 15 from both sides: 6x = 136. 2. Divide both sides by 6: x = (136)/6. 3. x = 22.67.
38
Solve for x: 6x + 14 = 71.
Answer:
9.5
Step-by-step solution: 1. Subtract 14 from both sides: 6x = 57. 2. Divide both sides by 6: x = (57)/6. 3. x = 9.5.
39
Solve for x: 7x + 15 = 153.
Answer:
19.71
Step-by-step solution: 1. Subtract 15 from both sides: 7x = 138. 2. Divide both sides by 7: x = (138)/7. 3. x = 19.71.
40
Solve for x: 4x + 17 = 167.
Answer:
37.5
Step-by-step solution: 1. Subtract 17 from both sides: 4x = 150. 2. Divide both sides by 4: x = (150)/4. 3. x = 37.5.