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
91
The present age of A is 30 years and he is 9 years older than B. What will be the sum of their ages after 5 years?
Answer:
61
Step-by-step solution: 1. B's present age = 30 - 9 = 21. 2. A's age after 5 years = 30 + 5. 3. B's age after 5 years = 21 + 5. 4. Sum = (30 + 5) + (21 + 5) = 61.
92
The present age of A is 29 years and he is 8 years older than B. What will be the sum of their ages after 9 years?
Answer:
68
Step-by-step solution: 1. B's present age = 29 - 8 = 21. 2. A's age after 9 years = 29 + 9. 3. B's age after 9 years = 21 + 9. 4. Sum = (29 + 9) + (21 + 9) = 68.
93
The present age of A is 21 years and he is 13 years older than B. What will be the sum of their ages after 6 years?
Answer:
41
Step-by-step solution: 1. B's present age = 21 - 13 = 8. 2. A's age after 6 years = 21 + 6. 3. B's age after 6 years = 8 + 6. 4. Sum = (21 + 6) + (8 + 6) = 41.
94
The present age of A is 31 years and he is 9 years older than B. What will be the sum of their ages after 6 years?
Answer:
65
Step-by-step solution: 1. B's present age = 31 - 9 = 22. 2. A's age after 6 years = 31 + 6. 3. B's age after 6 years = 22 + 6. 4. Sum = (31 + 6) + (22 + 6) = 65.
95
The present age of A is 28 years and he is 11 years older than B. What will be the sum of their ages after 8 years?
Answer:
61
Step-by-step solution: 1. B's present age = 28 - 11 = 17. 2. A's age after 8 years = 28 + 8. 3. B's age after 8 years = 17 + 8. 4. Sum = (28 + 8) + (17 + 8) = 61.
96
The present age of A is 27 years and he is 8 years older than B. What will be the sum of their ages after 7 years?
Answer:
60
Step-by-step solution: 1. B's present age = 27 - 8 = 19. 2. A's age after 7 years = 27 + 7. 3. B's age after 7 years = 19 + 7. 4. Sum = (27 + 7) + (19 + 7) = 60.
97
The present age of A is 34 years and he is 7 years older than B. What will be the sum of their ages after 9 years?
Answer:
79
Step-by-step solution: 1. B's present age = 34 - 7 = 27. 2. A's age after 9 years = 34 + 9. 3. B's age after 9 years = 27 + 9. 4. Sum = (34 + 9) + (27 + 9) = 79.
98
The present age of A is 20 years and he is 9 years older than B. What will be the sum of their ages after 5 years?
Answer:
41
Step-by-step solution: 1. B's present age = 20 - 9 = 11. 2. A's age after 5 years = 20 + 5. 3. B's age after 5 years = 11 + 5. 4. Sum = (20 + 5) + (11 + 5) = 41.
99
The present age of A is 24 years and he is 6 years older than B. What will be the sum of their ages after 9 years?
Answer:
60
Step-by-step solution: 1. B's present age = 24 - 6 = 18. 2. A's age after 9 years = 24 + 9. 3. B's age after 9 years = 18 + 9. 4. Sum = (24 + 9) + (18 + 9) = 60.
100
The present age of A is 22 years and he is 12 years older than B. What will be the sum of their ages after 7 years?
Answer:
46
Step-by-step solution: 1. B's present age = 22 - 12 = 10. 2. A's age after 7 years = 22 + 7. 3. B's age after 7 years = 10 + 7. 4. Sum = (22 + 7) + (10 + 7) = 46.