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
11
The present age of A is 34 years and he is 8 years older than B. What will be the sum of their ages after 9 years?
Answer:
78
Step-by-step solution: 1. B's present age = 34 - 8 = 26. 2. A's age after 9 years = 34 + 9. 3. B's age after 9 years = 26 + 9. 4. Sum = (34 + 9) + (26 + 9) = 78.
12
The present age of A is 33 years and he is 8 years older than B. What will be the sum of their ages after 8 years?
Answer:
74
Step-by-step solution: 1. B's present age = 33 - 8 = 25. 2. A's age after 8 years = 33 + 8. 3. B's age after 8 years = 25 + 8. 4. Sum = (33 + 8) + (25 + 8) = 74.
13
The present age of A is 34 years and he is 12 years older than B. What will be the sum of their ages after 9 years?
Answer:
74
Step-by-step solution: 1. B's present age = 34 - 12 = 22. 2. A's age after 9 years = 34 + 9. 3. B's age after 9 years = 22 + 9. 4. Sum = (34 + 9) + (22 + 9) = 74.
14
The present age of A is 26 years and he is 13 years older than B. What will be the sum of their ages after 6 years?
Answer:
51
Step-by-step solution: 1. B's present age = 26 - 13 = 13. 2. A's age after 6 years = 26 + 6. 3. B's age after 6 years = 13 + 6. 4. Sum = (26 + 6) + (13 + 6) = 51.
15
The present age of A is 24 years and he is 13 years older than B. What will be the sum of their ages after 9 years?
Answer:
53
Step-by-step solution: 1. B's present age = 24 - 13 = 11. 2. A's age after 9 years = 24 + 9. 3. B's age after 9 years = 11 + 9. 4. Sum = (24 + 9) + (11 + 9) = 53.
16
The present age of A is 29 years and he is 9 years older than B. What will be the sum of their ages after 9 years?
Answer:
67
Step-by-step solution: 1. B's present age = 29 - 9 = 20. 2. A's age after 9 years = 29 + 9. 3. B's age after 9 years = 20 + 9. 4. Sum = (29 + 9) + (20 + 9) = 67.
17
The present age of A is 22 years and he is 7 years older than B. What will be the sum of their ages after 7 years?
Answer:
51
Step-by-step solution: 1. B's present age = 22 - 7 = 15. 2. A's age after 7 years = 22 + 7. 3. B's age after 7 years = 15 + 7. 4. Sum = (22 + 7) + (15 + 7) = 51.
18
The present age of A is 30 years and he is 12 years older than B. What will be the sum of their ages after 5 years?
Answer:
58
Step-by-step solution: 1. B's present age = 30 - 12 = 18. 2. A's age after 5 years = 30 + 5. 3. B's age after 5 years = 18 + 5. 4. Sum = (30 + 5) + (18 + 5) = 58.
19
The present age of A is 32 years and he is 6 years older than B. What will be the sum of their ages after 7 years?
Answer:
72
Step-by-step solution: 1. B's present age = 32 - 6 = 26. 2. A's age after 7 years = 32 + 7. 3. B's age after 7 years = 26 + 7. 4. Sum = (32 + 7) + (26 + 7) = 72.
20
The present age of A is 24 years and he is 8 years older than B. What will be the sum of their ages after 9 years?
Answer:
58
Step-by-step solution: 1. B's present age = 24 - 8 = 16. 2. A's age after 9 years = 24 + 9. 3. B's age after 9 years = 16 + 9. 4. Sum = (24 + 9) + (16 + 9) = 58.