I will give 10 gold coins to you ... everything have same size, shape, color, & weight but only one is duplicate. How will you find that duplicate one?

Answer Posted / durgakiran

Step 1: we name all the bag of gold coins as #1, #2, #3......#8, #9, and #10

Step 2: we put 1 coin from bag #1, 2 coins from bag #2, 3 coins from bag #3.........8 coins from bag #8, 9 coins from bag #9, and 10 coins from bag 10 onto the scale. Find out the total weight.

Step 3: the total weight should have been 10 grams X (1+2+3+4+5+6+7+8+9+10=55) = 550 grams if all coins are the same (10grams each).

Step 4: Subtract the total of step 2 from total of step 3.

Conclusion: If step 4 results 1 gram, then bag #1 is the low quality coins, if step 4 results 2 grams, then bag #2 is the one, if step 4 results 3 grams, then bag #3 is the one.......etc.

Is This Answer Correct ?    1 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Hi there, I am new to the world of testing. Is there any place where I can have a look at an actual specification documents or test plans or test cases. This will help me in generating a level of confidence. Looking forward to your replies

1459


How to test whether the application is having memory leakage using task manager and PerfMon. Please tell if any one know. thanku

1542


any one please send me any test case examples with tabular columns in manual testing

1753


please send me database stored procedure checklist.

2441


Why we have to do manual testing?

1204






what is the difference between Test-bed and test topology?

3266


Can some one help me writing a manual test case for email applications like yahoo i need for www.everonn.com

1530


hi friends i recently finished testing course in hyderabad.now am looking for a job in uk.i need help about the projects in interview point.can any one explain me abt banking project or credit card.like what are the problems faced in u r last project etc.

1414


Different types of design diagrams that supports to write test cases ?

1875


What is your Approach when you find 10 Sev-1 bugs in 50 test cases?

2072


Why should you care about objects and object-oriented testing?

1924


What will be the QA roles and responsibilities in Health care stream like BCBS,can someone please explain me any example project regarding health care services in web-based application?

1689


What is the big deal about ‘requirements’?

738


You want a automation tool to be used for your project. How will you convince the client for the same. Please give me specific answer.

1477


user id @ yahoo.com (or) yahoo.co.in (or) gmail.com.... etc

1937