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
81
The present age of A is 30 years and he is 6 years older than B. What will be the sum of their ages after 5 years?
Answer:
64
Step-by-step solution: 1. B's present age = 30 - 6 = 24. 2. A's age after 5 years = 30 + 5. 3. B's age after 5 years = 24 + 5. 4. Sum = (30 + 5) + (24 + 5) = 64.
82
The present age of A is 32 years and he is 12 years older than B. What will be the sum of their ages after 7 years?
Answer:
66
Step-by-step solution: 1. B's present age = 32 - 12 = 20. 2. A's age after 7 years = 32 + 7. 3. B's age after 7 years = 20 + 7. 4. Sum = (32 + 7) + (20 + 7) = 66.
83
The present age of A is 33 years and he is 6 years older than B. What will be the sum of their ages after 8 years?
Answer:
76
Step-by-step solution: 1. B's present age = 33 - 6 = 27. 2. A's age after 8 years = 33 + 8. 3. B's age after 8 years = 27 + 8. 4. Sum = (33 + 8) + (27 + 8) = 76.
84
The present age of A is 26 years and he is 8 years older than B. What will be the sum of their ages after 6 years?
Answer:
56
Step-by-step solution: 1. B's present age = 26 - 8 = 18. 2. A's age after 6 years = 26 + 6. 3. B's age after 6 years = 18 + 6. 4. Sum = (26 + 6) + (18 + 6) = 56.
85
The present age of A is 33 years and he is 9 years older than B. What will be the sum of their ages after 8 years?
Answer:
73
Step-by-step solution: 1. B's present age = 33 - 9 = 24. 2. A's age after 8 years = 33 + 8. 3. B's age after 8 years = 24 + 8. 4. Sum = (33 + 8) + (24 + 8) = 73.
86
The present age of A is 21 years and he is 7 years older than B. What will be the sum of their ages after 6 years?
Answer:
47
Step-by-step solution: 1. B's present age = 21 - 7 = 14. 2. A's age after 6 years = 21 + 6. 3. B's age after 6 years = 14 + 6. 4. Sum = (21 + 6) + (14 + 6) = 47.
87
The present age of A is 32 years and he is 8 years older than B. What will be the sum of their ages after 7 years?
Answer:
70
Step-by-step solution: 1. B's present age = 32 - 8 = 24. 2. A's age after 7 years = 32 + 7. 3. B's age after 7 years = 24 + 7. 4. Sum = (32 + 7) + (24 + 7) = 70.
88
The present age of A is 31 years and he is 11 years older than B. What will be the sum of their ages after 6 years?
Answer:
63
Step-by-step solution: 1. B's present age = 31 - 11 = 20. 2. A's age after 6 years = 31 + 6. 3. B's age after 6 years = 20 + 6. 4. Sum = (31 + 6) + (20 + 6) = 63.
89
The present age of A is 20 years and he is 10 years older than B. What will be the sum of their ages after 5 years?
Answer:
40
Step-by-step solution: 1. B's present age = 20 - 10 = 10. 2. A's age after 5 years = 20 + 5. 3. B's age after 5 years = 10 + 5. 4. Sum = (20 + 5) + (10 + 5) = 40.
90
The present age of A is 28 years and he is 9 years older than B. What will be the sum of their ages after 8 years?
Answer:
63
Step-by-step solution: 1. B's present age = 28 - 9 = 19. 2. A's age after 8 years = 28 + 8. 3. B's age after 8 years = 19 + 8. 4. Sum = (28 + 8) + (19 + 8) = 63.