Q. If a vaccine reduces the risk of infection by 75%, what is the probability of infection after vaccination if the initial probability of infection is 0.1? (2020)
A.
0.025
B.
0.075
C.
0.1
D.
0.5
Solution
The new probability of infection after vaccination = Initial probability × (1 - reduction) = 0.1 × (1 - 0.75) = 0.1 × 0.25 = 0.025.
Q. If a vaccine reduces the risk of infection by 75%, what is the probability of infection after vaccination if the initial probability of infection is 0.2? (2020)
A.
0.05
B.
0.1
C.
0.15
D.
0.2
Solution
The probability of infection after vaccination = Initial probability × (1 - reduction) = 0.2 × (1 - 0.75) = 0.2 × 0.25 = 0.05.
Q. If a woman with blood type A (genotype AO) has a child with a man with blood type B (genotype BO), what are the possible blood types of their child?
A.
A, B, AB, O
B.
A, B, AB
C.
A, O
D.
B, O
Solution
The possible blood types from AO x BO are A, B, AB, and O.
General Knowledge (NDA) is a crucial component of various competitive exams, including the NDA entrance test. Mastering this subject not only enhances your awareness of current affairs but also significantly boosts your exam scores. Practicing MCQs and objective questions helps you identify important topics and improves your ability to tackle exam questions effectively. By engaging with practice questions, you can solidify your understanding and prepare thoroughly for your upcoming exams.
What You Will Practise Here
Current Affairs: National and International Events
History: Key Dates and Important Figures
Geography: Physical and Political Maps
Indian Polity: Constitution and Governance
Economics: Basic Concepts and Terminology
Science: Fundamental Principles and Discoveries
General Awareness: Sports, Awards, and Recognitions
Exam Relevance
General Knowledge is a significant section in various exams such as CBSE, State Boards, NEET, and JEE. In these assessments, you can expect questions that test your understanding of historical events, geographical facts, and current affairs. Common question patterns include multiple-choice questions that require you to select the correct answer from a set of options, making it essential to be well-prepared with important General Knowledge (NDA) questions for exams.
Common Mistakes Students Make
Overlooking current affairs, assuming they are less important.
Confusing similar historical events or dates.
Neglecting to revise basic geographical concepts.
Misunderstanding key terms in Indian polity and governance.
Failing to connect economic principles with real-world scenarios.
FAQs
Question: What are the best ways to prepare for General Knowledge (NDA)? Answer: Regularly read newspapers, follow current affairs, and practice MCQs to enhance your knowledge.
Question: How can I improve my speed in answering General Knowledge questions? Answer: Time yourself while practicing and focus on understanding concepts rather than rote memorization.
Start your journey towards mastering General Knowledge (NDA) today! Solve practice MCQs and test your understanding to ensure you are well-prepared for your exams. Every question you tackle brings you one step closer to success!
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