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
101
What is the angle between the hands of a clock at 7:40?
Answer:
10°
Using |30(7) - 5.5(40)| = |210 - 220| = |-10| = 10°.
102
What is the angle between the hands of a clock at 6:40?
Answer:
40°
Substitute H=6 and M=40: |30(6) - 5.5(40)| = |180 - 220| = |-40| = 40°.
103
What is the angle between the hands of a clock at 5:40?
Answer:
70°
Using |30(5) - 5.5(40)| = |150 - 220| = |-70| = 70°.
104
What is the angle between the hands of a clock at 4:40?
Answer:
100°
Substitute H=4 and M=40: |30(4) - 5.5(40)| = |120 - 220| = |-100| = 100°.
105
What is the angle between the hands of a clock at 3:40?
Answer:
130°
Using |30(3) - 5.5(40)| = |90 - 220| = |-130| = 130°.
106
What is the angle between the hands of a clock at 2:40?
Answer:
160°
Substitute H=2 and M=40: |30(2) - 5.5(40)| = |60 - 220| = |-160| = 160°.
107
What is the angle between the hands of a clock at 1:40?
Answer:
170°
Using |30(1) - 5.5(40)| = |30 - 220| = |-190| = 190°. The interior angle is 360° - 190° = 170°.
108
What is the angle between the hands of a clock at 12:20?
Answer:
110°
For 12:20, use H=0 and M=20. |30(0) - 5.5(20)| = |-110| = 110°.
109
What is the angle between the hands of a clock at 11:20?
Answer:
140°
Substitute H=11 and M=20: |30(11) - 5.5(20)| = |330 - 110| = 220°. The interior angle is 360° - 220° = 140°.
110
What is the angle between the hands of a clock at 10:20?
Answer:
170°
Using |30H - 5.5M|: |30(10) - 5.5(20)| = |300 - 110| = 190°. Since this is a reflex angle (> 180°), the interior angle is 360° - 190° = 170°.