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
If two unbiased coins are tossed simultaneously, what is the probability of getting exactly two heads?
Answer:
1/4
Step 1: The sample space is {HH, HT, TH, TT}. Total outcomes = 4. Step 2: The favorable outcome for exactly two heads is {HH}. Favorable outcomes = 1. Step 3: Probability = 1/4.
122
What is the probability of getting a head when a single unbiased coin is tossed?
Answer:
1/2
Step 1: The sample space for a single coin toss is {Head, Tail}. Total possible outcomes = 2. Step 2: The favorable outcome is {Head}. Number of favorable outcomes = 1. Step 3: Probability = Favorable outcomes / Total outcomes = 1/2.