These are sample practice MCQs created for exam preparation. These are NOT official exam questions.
A box contains 4 red balls and 6 blue balls. If two balls are drawn with replacement, what is the probability that both are red?
Question:
A box contains 4 red balls and 6 blue balls. If two balls are drawn with replacement, what is the probability that both are red?
A box contains 4 red balls and 6 blue balls. If two balls are drawn with replacement, what is the probability that both are red?
Options
Answer: (B) 4/25
Explanation:
P(first red) = 4/10 = 2/5. With replacement, P(second red) = 4/10 = 2/5. P(both red) = (2/5) × (2/5) = 4/25.
Explanation:
P(first red) = 4/10 = 2/5. With replacement, P(second red) = 4/10 = 2/5. P(both red) = (2/5) × (2/5) = 4/25.
👉 Want AI explanation? Open in MCQ App
Recommended articles
- How To Cover Current Affairs For Upsc Prelims — Master UPSC Current Affairs with daily newspaper reading, Vision IAS monthly compilations, PT 365, and MCQ practice. Complete strategy guide for Prelims…
- Top 10 Daily Current Affairs Resources For Upsc Aspirants — Discover the best daily current affairs resources for UPSC 2026. Complete guide with The Hindu, PIB, Sansad TV, and 7 more proven sources. Expert…
- Free Cat Previous Year Questions Guide — Master CAT 2025 with free previous year questions. Practice 1000+ PYQs, mock tests, and detailed solutions. Complete guide to CAT preparation using past…