-
-
In a music concert, I was sitting only 100 feet away from the musicians.The performance was broadcasted. My sister who lives in Banglore also heard the same concert on the radio. I m sure u know that Banglore is over a 1000 miles away from calcutta and also that sound travels at 1100 feet per sec. Do u think there was any difference in the times at which the music was heard by my sister and myself. If yes, Explain?
sabareeswarcsi
- Apr 27th, 2010
His sister who lives in Bangalore will hear it first because radio waves travels much faster than sound waves. To be exact radio waves travel at a speed of 186000 miles per second which is equal to th...
kiranaar10728
- Jun 18th, 2008
As far as iam concerned i think ur sister will hear the note before u.because via satellite the programme will be transmitted as electromagnetic radio waves which travels at a rate of 3*10^8 m/s.but the difference will be negligibly small that it can be picked up neither by u nor by ur sister.
-
A man bought some horses, cows and goats.
A man bought some horses, cows and goats. They were 100 in number(totally). If it costed Rs.100 to buy those 100 animals and the cost of a horse, a cow and a goat was Rs.10,Rs.3, 50 paise respectively,how much horses goats and cows did he buy?
-
A thief is capable of running 20kms a day.
A thief is capable of running 20kms a day. A policeman who is to catch the thief can run 1km on the 1st day, 2kms on the 2nd day and so on. Then how long will it take the policeman to catch the thief?
moveon
- Nov 5th, 2009
A thief can run 20 kms a day.Let thief be catched in x daysso total km is 20*xkm run by policeman 1+2+3+4.........+x is an A.P is x(x+1)/2equating both20*x=x(x+1)/2x=39
navateja
- Jul 25th, 2009
Let the no. of days needed is x.In x days, the theif runs 20x kms.On day 1, police runs 1km.On day 2, he runs 2 kms.Similarly, on the xth day, he runs x kms.In the entire x days, police runs (1+2+3+.....
-
A jail has 100 cells, numbered 1 to 100. The king Declares some sort of amnesty and orders the following. step 1: make sure all Cells are closed step2: reverse (if open, close; if close, open) those Cells whose numbers are divisible by 1 (in this step, all cells will be Opened); step 3: reverse those that are divisible by 2 (in this step, All even numbered cells will be closed); step 4: reverse those that are Divisible by 3; step 5: reverse those divisible by 4; step 6 to step 101: and so on . . . step 102: release the prisoners in those cells which are finally Open. How many prisoners will be released, and from which cells?
vamsi_krishna475
- Dec 26th, 2010
A small modification for the first ans is that, 1 is also opened along with all those perfect squares.
-
6'o Clock Ticks 6 Times
At 6'o clock, the clock ticks 6 times. The time between first and last ticks was 30sec. How much time it takes at 12'o clock?
Read Best Answer
Editorial / Best Answer
swatisrajput- Member Since Sep-2010 | Sep 7th, 2010
At 6'o clock ticks 6 times means 5 interval
and also given that time b/w first and last tick is 30 sec.
so
30/5=6
i.e time of each interval is 6 sec.
Similarly at 12'o clock, clock ticks 12 times i.e 11 interval
so
1 interval time=6
so 11 interval=11*6
Answer=66 secpawan
- Jan 9th, 2016
@ sharisy that is what I believe and I got the same answer as you did
onika
- Feb 11th, 2012
1 minute
-
-
-
-
-
We have a brick of regular size. It weights 4 kilogrammes. How much do u think a similar brick, 4 times smaller, but made of the same material weigh?
Venugopal668
- Nov 27th, 2010
Actual brick is 4000gm 1 time smaller (1/2 of the brick)2000gm2 times smaller(1/2 of the 1 time smaller) 1000gm3 times smaller (1/2 of the 2 time smaller)500gm 4 times smaller(1/2 time of the 3 time smaller) 250 gm
digvijay87
- Jun 20th, 2008
The question should have been the dimensions of the brick are 4 times smaller than the original dimensions....then the explanation given that it weighs 1/16th is valid
-
-
In an Island the natives lie and visitors speak truth. A man wants to know whether a salesman beside him in a bar is a native or visitor. He asked him to ask a woman beside him whether she is a native or visitor. He replied "she says she is a visitor". Then he knew that the salesman is a native or visitor. salesman is in which category , native or visitor?
Read Best Answer
Editorial / Best Answer
Answered by: avinash shetty
- Jun 26th, 2007
The answer is he is a visitor i.e. he is telling the truth
Reason:
If he was a native i.e. a liar then his answer would would have been "she says she is a native" for both cases because
If she was visitor: she would have said she is a visitor and he would have lied that she is a native
If she was native: she would have lied and again say that she is a visitor and he would have lied that she is a native.
Best of luck byevinay
- Aug 23rd, 2011
The answer may be native, because without asking her the salesman said the answer, he says only in the condition when he is a liar, so liar means native
ganeshbhat
- Jan 14th, 2010
If the woman was a visitor then she would have accepted that she is a visitorIf the woman was a native then she would have lied that she is a visitorso in either case the woman says she is a visitorHe...
-
-
A person observes that his minute’s hand hours hand coincide every 65 min. Does the watch gain or lose time? If so, how much?
-
-
-
There are two trains. One from New York to Washington and second from Washington to New York. The total journey to a destination takes 5 hours. A train from New York to Washington leaves on hour at every hour The train from Washington to New York leaves an hour and on half an hour. How many trains will be passing if you are traveling from New York to Washington?
ankit_20101
- Oct 23rd, 2008
The answer is 6. 3 trains would leave from the Washington during the total journey from New York and the train will also meet 3 trains that left at 4:30-3:00 and 1:30 hrs earlier from Washington.
niraj
- Feb 27th, 2007
If we assume the speed of the trains are equal then after 2.30 hrs the first train will meet and after every 15 minute it will meet one train.So finally total 10 train it will meet.
-
There is A staircase having n steps (odd or even). A person standing at the base Can take one or two-steps at a time. My query is in how many ways can The stairs can be climbed?
sanjay_sharma
- Aug 23rd, 2012
Its not the n+1th fibonacci no., the ans is nth fibanacci no.
for eg:-
if no of steps is 3 then n=3
if no of steps is 4 then n=5
if no of steps is 5 then n=8
for 6 n=13
for 7 n=21
for 8 n=34 and so on...Aravindan
- Mar 27th, 2012
Ans is Fibonacci series.... if its n steps., then its n+1th fibo no.
-
Challenging Puzzles
Read Best Answer
Ans