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
121
What is the angle between the hands of a clock at 11:15?
Answer:
112.5°
Substitute H=11 and M=15: |30(11) - 5.5(15)| = |330 - 82.5| = 247.5°. The interior angle is 360° - 247.5° = 112.5°.
122
What is the angle between the hands of a clock at 10:15?
Answer:
142.5°
Using |30H - 5.5M|: |30(10) - 5.5(15)| = |300 - 82.5| = 217.5°. This is a reflex angle, so the interior angle is 360° - 217.5° = 142.5°.
123
What is the angle between the hands of a clock at 9:15?
Answer:
172.5°
Using the formula Angle = |30H - 5.5M|. Here, |30(9) - 5.5(15)| = |270 - 82.5| = 187.5°. Since a clock angle is usually represented by the acute/obtuse interior angle, we subtract from 360° if it exceeds 180°. 360° - 187.5° = 172.5°.
124
What is the angle between the hands of a clock at 8:15?
Answer:
157.5°
Applying the formula |30H - 5.5M|: |30(8) - 5.5(15)| = |240 - 82.5| = |157.5| = 157.5°.
125
What is the angle between the hands of a clock at 7:15?
Answer:
127.5°
Substitute H=7 and M=15 into the formula |30H - 5.5M|. We get |30(7) - 5.5(15)| = |210 - 82.5| = |127.5| = 127.5°.
126
What is the angle between the hands of a clock at 6:15?
Answer:
97.5°
Using the angle formula |30H - 5.5M|: |30(6) - 5.5(15)| = |180 - 82.5| = |97.5| = 97.5°.
127
What is the angle between the hands of a clock at 5:15?
Answer:
67.5°
Applying the formula |30H - 5.5M|: |30(5) - 5.5(15)| = |150 - 82.5| = |67.5| = 67.5°.
128
What is the angle between the hands of a clock at 4:15?
Answer:
37.5°
Substitute H=4 and M=15 into the formula |30H - 5.5M|. We get |30(4) - 5.5(15)| = |120 - 82.5| = |37.5| = 37.5°.
129
What is the angle between the hands of a clock at 3:15?
Answer:
7.5°
Using the formula Angle = |30H - 5.5M| with H=3 and M=15 gives |30(3) - 5.5(15)| = |90 - 82.5| = |7.5| = 7.5°.
130
What is the angle between the hands of a clock at 2:15?
Answer:
22.5°
Applying the formula |30H - 5.5M|: |30(2) - 5.5(15)| = |60 - 82.5| = |-22.5| = 22.5°.