There are 4 doors to a lecture room . The number of ways in which a student can enter the room and leave it by different door is

Assertion (A) : There are three doors to a room. The number of ways in which a student can enter the room and leave it by a different door is 6. Reason (R) : If an operation can be performed in m ways and another operation can be performed in n ways, then the two operations in succession can be performed in mn ways. The correct answer is

There are 5 doors to a lecture hall. The number of ways that a student can enter the hall and leave it by a different door is

There are 3 doors to a lecture room. In how many ways can lecturer enter the room from one door and leave from another door?

There are 3 doors to a lecture room. In how many ways can lecturer enter and leave the room ?

There are 5 doors to a lecture room. Two are red and the others are green. In how many ways can a lecturer enter the room and leave the room from different colored doors?

A room has 6 doors. In how many ways can a man enter the room through one door and come out through a different door?

A room has 8 doors. In how many ways can a man enter the room through one door and come out through a different door.

A room has 8 doors. In how many ways can a man enter the room through one door and come out through a different door.

A room has 6 doors.In how many ways can a man enter the room through one door and come out through a different door?

A room has 6 dorrs . In how many ways can a man enter the room through one door and come out through a different door ?