The number of groups that can be made from 5 | vedclass

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

Question

(b) At least one green ball can be selected out of $5$ green balls in ${2^5} - 1$

$i.e.$, in $31$ ways. Similarly at least one blue ball can be sel

Vedclass · Accepted Answer

$3720$

Vedclass · Answer

(b) At least one green ball can be selected out of $5$ green balls in ${2^5} - 1$

$i.e.$, in $31$ ways. Similarly at least one blue ball can be selected from $4$ blue balls in ${2^4} - 1 = 15$ ways. .

And at least one red or not red can be select in $2^3=8$ ways.

Hence required number of ways = $31 	imes 15 	imes 8 = 3720$.

The number of groups that can be made from $5$ different green balls, $4$ different blue balls and $3$ different red balls, if at least $1$ green and $1$ blue ball is to be included

Similar Questions

$^n{C_r}\,{ \div ^n}{C_{r - 1}} = $

Consider a class of $5$ girls and $7$ boys. The number of different teams consisting of $2$ girls and $3$ boys that can be formed from this class, if there are two specific boys $A$ and $B$, who refuse to be the members of the same team, is

In a touring cricket team there are $16$ players in all including $5$ bowlers and $2$ wicket-keepers. How many teams of $11$ players from these, can be chosen, so as to include three bowlers and one wicket-keeper

${ }^{n-1} C_r=\left(k^2-8\right){ }^n C_{r+1}$ if and only if:

What is the number of ways of choosing $4$ cards from a pack of $52$ playing cards? In how many of these

are face cards,