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
21
The present age of A is 33 years and he is 12 years older than B. What will be the sum of their ages after 8 years?
Answer:
70
Step-by-step solution: 1. B's present age = 33 - 12 = 21. 2. A's age after 8 years = 33 + 8. 3. B's age after 8 years = 21 + 8. 4. Sum = (33 + 8) + (21 + 8) = 70.
22
The present age of A is 23 years and he is 6 years older than B. What will be the sum of their ages after 8 years?
Answer:
56
Step-by-step solution: 1. B's present age = 23 - 6 = 17. 2. A's age after 8 years = 23 + 8. 3. B's age after 8 years = 17 + 8. 4. Sum = (23 + 8) + (17 + 8) = 56.
23
The present age of A is 29 years and he is 10 years older than B. What will be the sum of their ages after 9 years?
Answer:
66
Step-by-step solution: 1. B's present age = 29 - 10 = 19. 2. A's age after 9 years = 29 + 9. 3. B's age after 9 years = 19 + 9. 4. Sum = (29 + 9) + (19 + 9) = 66.
24
The present age of A is 31 years and he is 12 years older than B. What will be the sum of their ages after 6 years?
Answer:
62
Step-by-step solution: 1. B's present age = 31 - 12 = 19. 2. A's age after 6 years = 31 + 6. 3. B's age after 6 years = 19 + 6. 4. Sum = (31 + 6) + (19 + 6) = 62.
25
The present age of A is 20 years and he is 6 years older than B. What will be the sum of their ages after 5 years?
Answer:
44
Step-by-step solution: 1. B's present age = 20 - 6 = 14. 2. A's age after 5 years = 20 + 5. 3. B's age after 5 years = 14 + 5. 4. Sum = (20 + 5) + (14 + 5) = 44.
26
The present age of A is 22 years and he is 10 years older than B. What will be the sum of their ages after 7 years?
Answer:
48
Step-by-step solution: 1. B's present age = 22 - 10 = 12. 2. A's age after 7 years = 22 + 7. 3. B's age after 7 years = 12 + 7. 4. Sum = (22 + 7) + (12 + 7) = 48.
27
The present age of A is 28 years and he is 7 years older than B. What will be the sum of their ages after 8 years?
Answer:
65
Step-by-step solution: 1. B's present age = 28 - 7 = 21. 2. A's age after 8 years = 28 + 8. 3. B's age after 8 years = 21 + 8. 4. Sum = (28 + 8) + (21 + 8) = 65.
28
The present age of A is 25 years and he is 8 years older than B. What will be the sum of their ages after 5 years?
Answer:
52
Step-by-step solution: 1. B's present age = 25 - 8 = 17. 2. A's age after 5 years = 25 + 5. 3. B's age after 5 years = 17 + 5. 4. Sum = (25 + 5) + (17 + 5) = 52.
29
The present age of A is 30 years and he is 11 years older than B. What will be the sum of their ages after 5 years?
Answer:
59
Step-by-step solution: 1. B's present age = 30 - 11 = 19. 2. A's age after 5 years = 30 + 5. 3. B's age after 5 years = 19 + 5. 4. Sum = (30 + 5) + (19 + 5) = 59.
30
The present age of A is 31 years and he is 8 years older than B. What will be the sum of their ages after 6 years?
Answer:
66
Step-by-step solution: 1. B's present age = 31 - 8 = 23. 2. A's age after 6 years = 31 + 6. 3. B's age after 6 years = 23 + 6. 4. Sum = (31 + 6) + (23 + 6) = 66.