Question

Three persons entered a railway compartment in which $$5$$ seats were vacant. Find the number of ways in which they can be seated

A
30
B
45
C
120
D
60

Solution

The correct option is D $$60$$The first person can choose to sit in any of the $$5$$ seats in $$5$$ ways. Then the second person can choose to sit in any of the remaining $$4$$ seats in $$4$$ ways.Lastly, the third person can choose to sit in any of the remaining $$3$$ seats in $$3$$ ways.So, total number of ways $$= 5 \times 4 \times 3 = 60$$ waysMathematics

Suggest Corrections

0

Similar questions
View More

People also searched for
View More