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
41
The present age of A is 34 years and he is 11 years older than B. What will be the sum of their ages after 9 years?
Answer:
75
Step-by-step solution: 1. B's present age = 34 - 11 = 23. 2. A's age after 9 years = 34 + 9. 3. B's age after 9 years = 23 + 9. 4. Sum = (34 + 9) + (23 + 9) = 75.
42
The present age of A is 25 years and he is 11 years older than B. What will be the sum of their ages after 5 years?
Answer:
49
Step-by-step solution: 1. B's present age = 25 - 11 = 14. 2. A's age after 5 years = 25 + 5. 3. B's age after 5 years = 14 + 5. 4. Sum = (25 + 5) + (14 + 5) = 49.
43
The present age of A is 22 years and he is 9 years older than B. What will be the sum of their ages after 7 years?
Answer:
49
Step-by-step solution: 1. B's present age = 22 - 9 = 13. 2. A's age after 7 years = 22 + 7. 3. B's age after 7 years = 13 + 7. 4. Sum = (22 + 7) + (13 + 7) = 49.
44
The present age of A is 30 years and he is 8 years older than B. What will be the sum of their ages after 5 years?
Answer:
62
Step-by-step solution: 1. B's present age = 30 - 8 = 22. 2. A's age after 5 years = 30 + 5. 3. B's age after 5 years = 22 + 5. 4. Sum = (30 + 5) + (22 + 5) = 62.
45
The present age of A is 33 years and he is 11 years older than B. What will be the sum of their ages after 8 years?
Answer:
71
Step-by-step solution: 1. B's present age = 33 - 11 = 22. 2. A's age after 8 years = 33 + 8. 3. B's age after 8 years = 22 + 8. 4. Sum = (33 + 8) + (22 + 8) = 71.
46
The present age of A is 21 years and he is 9 years older than B. What will be the sum of their ages after 6 years?
Answer:
45
Step-by-step solution: 1. B's present age = 21 - 9 = 12. 2. A's age after 6 years = 21 + 6. 3. B's age after 6 years = 12 + 6. 4. Sum = (21 + 6) + (12 + 6) = 45.
47
The present age of A is 29 years and he is 6 years older than B. What will be the sum of their ages after 9 years?
Answer:
70
Step-by-step solution: 1. B's present age = 29 - 6 = 23. 2. A's age after 9 years = 29 + 9. 3. B's age after 9 years = 23 + 9. 4. Sum = (29 + 9) + (23 + 9) = 70.
48
The present age of A is 20 years and he is 12 years older than B. What will be the sum of their ages after 5 years?
Answer:
38
Step-by-step solution: 1. B's present age = 20 - 12 = 8. 2. A's age after 5 years = 20 + 5. 3. B's age after 5 years = 8 + 5. 4. Sum = (20 + 5) + (8 + 5) = 38.
49
The present age of A is 31 years and he is 7 years older than B. What will be the sum of their ages after 6 years?
Answer:
67
Step-by-step solution: 1. B's present age = 31 - 7 = 24. 2. A's age after 6 years = 31 + 6. 3. B's age after 6 years = 24 + 6. 4. Sum = (31 + 6) + (24 + 6) = 67.
50
The present age of A is 27 years and he is 11 years older than B. What will be the sum of their ages after 7 years?
Answer:
57
Step-by-step solution: 1. B's present age = 27 - 11 = 16. 2. A's age after 7 years = 27 + 7. 3. B's age after 7 years = 16 + 7. 4. Sum = (27 + 7) + (16 + 7) = 57.