An ordinary cube has four blank faces, one fa | vedclass

Name: PDF Generator App | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(c) $n = $ Total number of ways $ = {6^5}$

$A$ total of $12$ in $5$ throw can be obtained in following two ways -

$(i)$ One blank and four $3

Vedclass · Accepted Answer

$\frac{5}{{2592}}$

Vedclass · Answer

(c) $n = $ Total number of ways $ = {6^5}$

$A$ total of $12$ in $5$ throw can be obtained in following two ways -

$(i)$ One blank and four $3's = {}^5{C_1} = 5$

or $(ii)$ Three $2's$ and two $3's = {}^5{C_2} = 10$

Hence, the required probability $ = \frac{{15}}{{{6^5}}} = \frac{5}{{2592}}.$

An ordinary cube has four blank faces, one face marked $2$ another marked $3$. Then the probability of obtaining a total of exactly $12$ in $5$ throws, is

Similar Questions

If three letters can be posted to any one of the $5$ different addresses, then the probability that the three letters are posted to exactly two addresses is:

A bag contains $5$ white, $7$ black and $4$ red balls. Three balls are drawn from the bag at random. The probability that all the three balls are white, is

A lot consists of $12$ good pencils, $6$ with minor defects and $2$ with major defects. A pencil is choosen at random. The probability that this pencil is not defective is

A box contains $10$ mangoes out of which $4$ are rotten. $2$ mangoes are taken out together. If one of them is found to be good, the probability that the other is also good is

A card is drawn at random from a pack of $100$ cards numbered $1$ to $100$. The probability of drawing a number which is a square is