If you have 100 unbiased coins and one of them is defective, and you have a weighing balance to check the weight of the coins, what is the minimum number of times you need to weigh the coins to identify the defective coin?
Anonymous
1y
1 defective coin then weigh that defective coin once
Anonymous
1y
5 times
1st 33 +33 + 33 +1
2nd 11 + 11 + 11
3rd 3 + 3 + 3 + 2
4th 3 + 3 (2+1 from 1st)
5th 1+1+1
Anonymous
2y
23 coins are the same weight, but 1 coin is either heavier or lighter. All you are given is a set of BALANCE scales, which can compare the weight of any two
Add answer anonymously...
Flipkart Business Analyst interview questions & answers
A Business Analyst was asked 5mo agoQ. Tell me about yourself.
A Business Analyst was asked 5mo agoQ. What are your expectations?
A Business Analyst was asked 11mo agoQ. How do you derive insights from SQL query results in Excel?
Popular interview questions of Business Analyst
A Business Analyst was asked 5mo agoQ1. What are your expectations?
A Business Analyst was asked 5mo agoQ2. Tell me about yourself.
A Business Analyst was asked 12mo agoQ3. How do you derive insights from SQL query results in Excel?
Stay ahead in your career. Get AmbitionBox app
Trusted by over 1.5 Crore job seekers to find their right fit company
80 L+
Reviews
10L+
Interviews
4 Cr+
Salaries
1.5 Cr+
Users
Contribute to help millions
AmbitionBox Awards
Get AmbitionBox app
Made with ❤️ in India. Trademarks belong to their respective owners. All rights reserved © 2025 Info Edge (India) Ltd.
Follow Us
