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
51
The present age of A is 27 years and he is 13 years older than B. What will be the sum of their ages after 7 years?
Answer:
55
Step-by-step solution: 1. B's present age = 27 - 13 = 14. 2. A's age after 7 years = 27 + 7. 3. B's age after 7 years = 14 + 7. 4. Sum = (27 + 7) + (14 + 7) = 55.
52
The present age of A is 28 years and he is 10 years older than B. What will be the sum of their ages after 8 years?
Answer:
62
Step-by-step solution: 1. B's present age = 28 - 10 = 18. 2. A's age after 8 years = 28 + 8. 3. B's age after 8 years = 18 + 8. 4. Sum = (28 + 8) + (18 + 8) = 62.
53
The present age of A is 24 years and he is 12 years older than B. What will be the sum of their ages after 9 years?
Answer:
54
Step-by-step solution: 1. B's present age = 24 - 12 = 12. 2. A's age after 9 years = 24 + 9. 3. B's age after 9 years = 12 + 9. 4. Sum = (24 + 9) + (12 + 9) = 54.
54
The present age of A is 28 years and he is 6 years older than B. What will be the sum of their ages after 8 years?
Answer:
66
Step-by-step solution: 1. B's present age = 28 - 6 = 22. 2. A's age after 8 years = 28 + 8. 3. B's age after 8 years = 22 + 8. 4. Sum = (28 + 8) + (22 + 8) = 66.
55
The present age of A is 22 years and he is 8 years older than B. What will be the sum of their ages after 7 years?
Answer:
50
Step-by-step solution: 1. B's present age = 22 - 8 = 14. 2. A's age after 7 years = 22 + 7. 3. B's age after 7 years = 14 + 7. 4. Sum = (22 + 7) + (14 + 7) = 50.
56
The present age of A is 30 years and he is 7 years older than B. What will be the sum of their ages after 5 years?
Answer:
63
Step-by-step solution: 1. B's present age = 30 - 7 = 23. 2. A's age after 5 years = 30 + 5. 3. B's age after 5 years = 23 + 5. 4. Sum = (30 + 5) + (23 + 5) = 63.
57
The present age of A is 23 years and he is 12 years older than B. What will be the sum of their ages after 8 years?
Answer:
50
Step-by-step solution: 1. B's present age = 23 - 12 = 11. 2. A's age after 8 years = 23 + 8. 3. B's age after 8 years = 11 + 8. 4. Sum = (23 + 8) + (11 + 8) = 50.
58
The present age of A is 32 years and he is 9 years older than B. What will be the sum of their ages after 7 years?
Answer:
69
Step-by-step solution: 1. B's present age = 32 - 9 = 23. 2. A's age after 7 years = 32 + 7. 3. B's age after 7 years = 23 + 7. 4. Sum = (32 + 7) + (23 + 7) = 69.
59
The present age of A is 21 years and he is 10 years older than B. What will be the sum of their ages after 6 years?
Answer:
44
Step-by-step solution: 1. B's present age = 21 - 10 = 11. 2. A's age after 6 years = 21 + 6. 3. B's age after 6 years = 11 + 6. 4. Sum = (21 + 6) + (11 + 6) = 44.
60
The present age of A is 25 years and he is 13 years older than B. What will be the sum of their ages after 5 years?
Answer:
47
Step-by-step solution: 1. B's present age = 25 - 13 = 12. 2. A's age after 5 years = 25 + 5. 3. B's age after 5 years = 12 + 5. 4. Sum = (25 + 5) + (12 + 5) = 47.