Question

A shopkeeper sells four varieties of perfumes and he has a large number of bottles of the same size of each variety in his stock. There are 6 places in row in his showcase. The number of different ways of displaying the four varieties of perfumes in the showcase is:

Answer 1

Answer:

There are 5 places

So three items in 5 places

So total nos of arrangement including repetition and not including all items is 3

5

=243

Total arrangement where only two items in 5 places = (

2

3

)2

5

−3

Total arrangement where 3 items in 5 places =243−((

2

3

)2

5

−3)

Total arrangement where 3 items in 5 places =243−3×32+3=150

Step-by-step explanation:

pls mark me as brainliest