@DeAdLy here pls tell how to proceed......
@ishu1991 said:there can be another case when x-y=z-y x=z so six numbers are possible 171252333414but 333 is repeated here so total 9 numbers
bhai x - y = y - z hai na?
condition ke acc hi to karna hai...otherwise your approach is correct
@bs0409 said:OA=14/bbIn a three digit number , the difference between it's hundred and it's tens digit is equal to the difference between it's ten digits and it's units digit . Also the sum of the digits is 9 . How many are possible which satisfy the given conditions ?
if abc is the number, then either a = c or a + c = 2b satisfies... another condition is a+b+c=9 for a=1,2,3,4 we have 4 numbers,
171,252,333,414 for a + c = 2b, and hence 3b = 9. and b = 3,we have a + c = 6
so we have numbers as 135,234,333,432,531,630.... 333 is repeated hence 9 numbers??
@bhatkushal said:@DeAdLy here pls tell how to proceed......
see for this you have to have read the things correctly..akash is only able to clear one time..so let his speed be X...
bhavesh overlaps akash 4 times so his speed is 4X
Also Chandresh overlaps him 3 times so his speed 3X
Now both bhavesh & Chandresh are moving are opp direction
now designate a point where they will meet first time & workout like this for consequent steps
clear!!
@mailtoankit said:bhai x - y = y - z hai na?condition ke acc hi to karna hai...otherwise your approach is correct
difference between two numbers can be vice versa... difference between x and y can be x-y and y-x...
its basically |x-y|
@Logrhythm said:6?? abca-b=b-cso a+c = 2b...a+b+c=9=> b=3..hence, a+c=6..(a,c) = (6,0);(1,5);(2,4);(3,3)so, 6 such numbers...
sir, y have not you considered, a-b = c-b and b-a = b-c ...
difference between two numbers should be both ways as far as i know..
@pratskool said:difference between two numbers can be vice versa... difference between x and y can be x-y and y-x...its basically |x-y|http://mathforum.org/library/drmath/view/63137.html
yeah got it now..
@pratskool said:sir, y have not you considered, a-b = c-b and b-a = b-c ...difference between two numbers should be both ways as far as i know..
if that would have been the case then the question would have read...the absolute difference between..
but han...mein bhi ye surety se ni bol sakta....ho bhi sakta hai and nahi bhi ho sakta...aslee toh tabhi pata chalega jab cat mein saamne aayega.....but i guess the mention of the word "absolute" is key...
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and if the case u mentioned is considered...then we'll have 3 cases in total..
a-b=b-c
b-a=b-c
a-b=c-b
so i guess ye nahi hog bhai....
@Logrhythm said:if that would have been the case then the question would have read...the absolute difference between..but han...mein bhi ye surety se ni bol sakta....ho bhi sakta hai and nahi bhi ho sakta...aslee toh tabhi pata chalega jab cat mein saamne aayega.....but i guess the mention of the word "absolute" is key...-------------and if the case u mentioned is considered...then we'll have 3 cases in total..a-b=b-cb-a=b-ca-b=c-bso i guess ye nahi hog bhai....
3 cases u toked abt sir equals to
a + c =2b, a = c amd a =c.... so ultimately 2 hi case hoge...
and even if absolute is not mentioned we have to subtract the smaller from the larger... please see the above link for reference
so difference between x and y is whichever is larger - whichever is smaller
@pratskool said:3 cases u toked abt sir equals toa + c =2b, a = c amd a =c.... so ultimately 2 hi case hoge...http://wiki.answers.com/Q/How_do_you_find_the_difference_between_two_numbershttp://wiki.answers.com/Q/How_do_you_find_the_difference_between_two_numbersand even if absolute is not mentioned we have to subtract the smaller from the larger... please see the above link for reference
kindly have a look at this...
&
@bs0409 bhai answer kya hai uss question ka??
@Logrhythm said:kindly have a look at this...http://mathworld.wolfram.com/AbsoluteDifference.html&http://mathworld.wolfram.com/Difference.html@bs0409 bhai answer kya hai uss question ka??
in the link you have given its of and not between....in the question it is between when we say between we mean on the number line... we mean displacement ...
a fair coin is tossed 10 times. Find the probability that two Heads do not occur consecutively?
@The_Loser said:a fair coin is tossed 10 times. Find the probability that two Heads do not occur consecutively?
fibonnaci problem...
F(10) = 144
so prob = 144/2^10...
@The_Loser said:a fair coin is tossed 10 times. Find the probability that two Heads do not occur consecutively?
144/1024= 0.140625
@Logrhythm said:fibonnaci problem...F(10) = 144so prob = 144/2^10...
@shattereddream said:144/1024= 0.140625
OA = 1/8
@The_Loser said:a fair coin is tossed 10 times. Find the probability that two Heads do not occur consecutively?
total number of outcomes = 1024
no. of outcomes with no head = 1
1 head = 10
2 head = 36 (selecting 2 gaps among 9 gaps)
3 head = 56 (selecting 3 among 8 gaps)
4 head = 35 (selecting 4 among 7 gap)
5 head = 6C5 = 6
so 144/1024 ??
in a room ther are 7 persons. the chances that two of them were born on the same day of week.?