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#129 Help Me ! » lucky no. probability » 2012-01-08 05:22:16

juantheron
Replies: 3

a 4 digit number(numbered from 0000 to 9999) is said to be lucky if sum of its first two digits is same as the sum of its last 2 digits.If a four-digit number is picked up at random,the probability that it is a lucky number is

#131 Help Me ! » probability on set » 2012-01-07 05:13:21

juantheron
Replies: 2

2)If P(AUB)=P(A∩B), Then which one is Right


(a)P(A)=P(B)
(b)P(AUB)=1
(c)P(A∩B)=1
(d)P(A)+P(B)=1
(e)none of these

#132 Re: Help Me ! » parabola » 2012-01-06 01:00:55

The Dude plz  can you me how can you get it

#133 Help Me ! » polynomials » 2012-01-06 00:59:42

juantheron
Replies: 3

if a polynomial P with integer coefficients has three distinct integer zeroes, then show that P(n) not equal to 1 for any integer n.

#134 Help Me ! » parabola » 2012-01-04 22:28:45

juantheron
Replies: 5

Let

be the latusrectum of the parabola
with vertex

Then Minimum Length of Projection of

on a tangent drawn in the portion
, is

answer =

actually i did not understand the question

can anyone draw the figure of that problem

thanks

#136 Re: Help Me ! » probability on complex no. » 2012-01-03 21:17:41

actually i want to know that total favourable cases for which 

#137 Re: Help Me ! » probability on complex no. » 2012-01-03 21:05:31

Thanks bobbym

could you like to give me a explanation of that

#138 Help Me ! » no of isosceles triangle » 2012-01-03 04:31:13

juantheron
Replies: 1

Find the number of isosceles triangles with integer sides if no side exceeds 1994

#139 Re: Help Me ! » palindrom probability » 2012-01-02 20:07:59

thanks bobbym and anonimnystefy and Franklin

and belated happy new year 2012

#140 Help Me ! » intersection of line and circle » 2012-01-02 20:06:52

juantheron
Replies: 3

What is the maxium number of regions in which 2012 lines and 2012 circles can divide a plane?

#142 Help Me ! » palindrom probability » 2012-01-01 02:16:33

juantheron
Replies: 8

Let X be a set of all 13 digit Integers where each digit can take values from 0 to 9 . An Integer is choosen at random from X

. then find the probability that it is a palindrome

#143 Help Me ! » probability » 2011-12-31 20:24:04

juantheron
Replies: 3

12 persons are asked a question in a random order of which exactly 2 persons know the answer .the probability that the first four do not know the answer is

#144 Re: Help Me ! » no. of combination » 2011-12-30 05:49:11

thanks bobbym

would you like to give me a link of generating function.

thanks

#145 Help Me ! » multinomial theorem » 2011-12-30 05:47:32

juantheron
Replies: 1

no of solns of x+y+z=15.My main is concern is how to solve it through multinomial theorem(Why and how it is used like that) please explain in detail

#146 Help Me ! » no. of combination » 2011-12-29 02:29:33

juantheron
Replies: 7

the no. of combinations formed from the word DEGREE taking 4 letters at a time

#147 Re: Help Me ! » no. of ways » 2011-12-28 04:21:59

yes bobbym thanks

but how can you get it

#148 Help Me ! » no of ways » 2011-12-28 04:20:54

juantheron
Replies: 1

in how many ways a  garland can be prepared with 5 lily,7 roses and 8 tulips...such that all tulips remains together

#149 Help Me ! » no. of ways » 2011-12-27 03:35:33

juantheron
Replies: 3

In How Many Different Ways Can 12 Different Fruits Be Given Away To 3 Boys,

So That Each Boy Gets At Least One Fruit?

#150 Re: Help Me ! » another dice problem » 2011-12-24 04:39:13

thanks anonimnystefy

how can you get it

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