Question

Their are 4 letters and 4 envelopes.find the number of ways
in which only two letters go in wrong envelope ?

Answer 1

\(\large \color{black}{\begin{align}
& \normalsize \text{Their are 4 letters and 4 envelopes.find the number of ways }\hspace{.33em}\\~\\
& \normalsize \text{in which only two letters go in wrong envelope ?}\hspace{.33em}\\~\\
& a.)\ 4 \hspace{.33em}\\~\\
& b.)\ 5 \hspace{.33em}\\~\\
& c.)\ 6 \hspace{.33em}\\~\\
& d.)\ 3 \hspace{.33em}\\~\\
\end{align}}\)

Answer 2

its c 6 ways

Answer 3

yea how u got it

Answer 4

we will need to select the two letters which have to be put in wrong envelop . that is \[4 \times \frac{ 3 }{ 2 }\] i.e \[^{4}c _{2} = 6\]

Answer 5

thnks

Answer 6

no worries :)

Answer 7

Yep :) It's C, 6 ways :)