Lounge

Aditya's Avatar
Scorching goIITian

Joined: 2 Nov 2008
Post: 243
11 Nov 2008 23:55:35 IST
0 People liked this
7
1281 View Post
ONLY FOR BRAINY IIT ASPIRANTS
Engineering Entrance , JEE Main , JEE Main & Advanced

 


You are getting out of the IIT Pawai campus. You want to go to the Pawai lake for boating. There are 2 ways in front of you. But you dont know which way goes to the Pawai lake. One guard is standing on each way. One of them always tells a lie and one always speaks the truth.But you dont know who lies and who speaks the truth. Suggest an intelligent question that you would ask to any one of them so that you may get the correct way to the Pawai Lake. (You can ask only one question and that too to any one guard)



Comments (7)

Siddhartha  Gupta's Avatar

Blazing goIITian

Joined: 1 Nov 2008
Posts: 329
12 Nov 2008 00:10:50 IST
0 people liked this

GOSH ... I just can't get it....its a tough nut...
Himanshu's Avatar

Forum Expert
Joined: 19 Feb 2007
Posts: 3836
12 Nov 2008 00:33:58 IST
2 people liked this

maybe he just asks from one gaurd.....does this way reaches pawai lake according to the other gaurd..? if the ans is yes....he goes in that direction else the other direction....

sairajgopal's Avatar

Hot goIITian

Joined: 21 Jul 2008
Posts: 124
12 Nov 2008 00:42:57 IST
0 people liked this

you ask any one is this pawai ?according to his answer u can know to go which direction.

MAQ MAK's Avatar

Scorching goIITian

Joined: 28 May 2008
Posts: 219
12 Nov 2008 00:58:04 IST
1 people liked this

d question should b asked lyk dis... "what would d other guard say if i ask him whether his way leads to pawai lake...? "


whatever b d answer given by d guard... if v take d other way... v shall reach pawai lake...


let me explain...


suppose u go to a guard who says truth... n suppose dat his way leads to pawai lake... den he answers to our question in dis manner... " the other guard will say dat his path will lead to pawai lake..."


now, if u go to d guard who says lies... n suppose dat his way leads to pawai lake... den he answers to our question in dis manner... " the other guard will say dat his path will lead to pawai lake... "


now suppose, if u go to d guard who says truth... n suppose dat his way doesn't lead to pawai lake... den he answers our question in dis manner... " the other guard will say dat his way doesn't lead to pawai lake..."


now again, if u go to d guard who says lies... n suppose his path doesn't lead to pawai lake... den he answers to our question in dis manner... " the other guy will say dat his path doesn't lead to pawai lake... "


in all four cases... if v take d path other dan d one which -according to d reply given leads to pawai lake-... v shall reach pawai lake...


hope u got it...


rate me if i'm correct...

kishore subramanian's Avatar

Blazing goIITian

Joined: 21 Apr 2007
Posts: 453
12 Nov 2008 03:13:22 IST
0 people liked this

This is a modified ques from a basic ques just to ask here....just the names are different...

MAQ MAK's Avatar

Scorching goIITian

Joined: 28 May 2008
Posts: 219
12 Nov 2008 10:39:33 IST
0 people liked this

This is really an admirable question... its one of d best questions i came across...

Aditya's Avatar

Scorching goIITian

Joined: 2 Nov 2008
Posts: 243
13 Nov 2008 12:18:01 IST
0 people liked this

Is there any other question that you''ll can think of???



Quick Reply


Reply

Some HTML allowed.
Keep your comments above the belt or risk having them deleted.
Signup for a avatar to have your pictures show up by your comment
If Members see a thread that violates the Posting Rules, bring it to the attention of the Moderator Team
Free Sign Up!
Sponsored Ads

Preparing for JEE?

Kickstart your preparation with new improved study material - Books & Online Test Series for JEE 2014/ 2015


@ INR 5,443/-

For Quick Info

Name

Mobile

E-mail

City

Class

Vertical Limit

Top Contributors
All Time This Month Last Week
1. Bipin Dubey
Altitude - 16545 m
Post - 7958
2. Himanshu
Altitude - 10925 m
Post - 3836
3. Hari Shankar
Altitude - 10085 m
Post - 2217
4. edison
Altitude - 10825 m
Post - 7804
5. Sagar Saxena
Altitude - 8635 m
Post - 8064
6. Yagyadutt Mishr..
Altitude - 6330 m
Post - 1958

Find Posts by Topics

Physics

Topics

Mathematics

Chemistry

Biology

Parents Corner

Board

Fun Zone