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How many different ways can they be arranged

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Reference no: EM131027877

I am studying perms and combs on my own for a course which i want to take in the future. I have come across 2 questions, to which I need a solution. I would also need the reasoning applied to the solution for future application. Here are the 2 questions.

Question 1. How many ways can 18 different vehicles be arranged in a car dealership showroom?

a) In a single row ?

b) In 2 rows, where 7 of the vehicles are trucks to be arranged in one row, and the other 11 vehicles are cars, to be arranged in another row?

Question 2. There are 18 people in a choir, for a school of music. How many different ways can they be arranged.

a) In a single row?

b) In 3 rows, with 5 in the first row, 6 in the second row, and 7 in the third row ?

Reference no: EM131027877

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