Question

There are 3 candidates for a post and one is to be selected by the votes of 7 men. The number of ways in which votes can be given is:

• A. $7^3$
• B. $3^7$
• C. $7^2$
• D. ${}^7{P}_3$

Answer 1

The correct option is B $3^7$

Each of the 7 persons can be voted by all $3$ candidates, so the total number of ways in which votes can be given is

$3\times 3\times 3\times ......\left(7times\right)=3^7$