# Counting the number of trials.

An urn contains $5$ boxes. Each box contains $5$ balls of different colors red, yellow, white, blue and black. Rangeela wants to pick $5$ balls of different colors ,a different colored ball from each box .If from the first box in the first draw, he has drawn a red ball and from the second box he has drawn a black ball , find the maximum number of trials that are needed to be made by Rangeela to accomplish his task if a ball picked is not replaced .

$\color{green}{a.)\ 12 }\\ b.)\ 11 \\ c.)\ 20 \\ d.)\ 60 \\$

As the Ball need to be last place I though I would be $5+5+5=15$

But it is not given in options so I am confused.

I look for a short and simple way.

I have studied maths upto $12$th grade.