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  • How many meaningful words can be made with just the first two letters of the word "HELP"?  Option: 1 8<b

How many meaningful words can be made with just the first two letters of the word "HELP"?

 

Option: 1

8


Option: 2

12


Option: 3

16

 


Option: 4

15


Answers (1)

best_answer

The term “HELP” has 4 distinct letters.

Thus, the required number of words is given by,

\begin{aligned} &{ }^4 P_2=\frac{4 !}{(4-2) !}\\\\ &{ }^4 P_2=\frac{4 !}{2 !}\\\\ &{ }^4 P_2=\frac{4 \times 3 \times 2}{2}\\\\ &{ }^4 P_2=12 \end{aligned}

Therefore, the required number of words formed is 12.

 

 

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Gaurav

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