Question

Mathematics ⬇ A square is divided into 9 identical smaller. Six identical balls are to be placed in these smaller squares such that each of the three rows gets gets at least one ball (one ball in one square only). In how many different ways can this be done?

Answer 1

as as we can see that one AS 9 places because we divide square into 9 identical small squares so in this is square wave free walls so 3 versus equal probability to have in the identical small squares number of arrangement is equal to 3 power 9
${3}^{9}$
I hope this will help you