The number of rooms on the ground floor of a building is 12 less than the twice of the number of rooms on first floor. If the first floor has `x` rooms, how many rooms does the ground floor has?

The volume of a room is 378m^(3) and the area of its floor is 84m^(2) . Find the height of the room.

Area of floor of a room is 48 sq m. If its height is 5 m, then the volume of the room is

The perimeter of the floor of a room is 18 m. What is the area of the walls of the room, 1f the height of the room is 3 m ?

In a three-storey building, there are four rooms on the ground floor, two on the first and two on the second floor. If the rooms are to be allotted to six persons, one person occupying one room only, the number of ways in which this can be done so that no floor remains empty is a. "^8P_6-2(6!) b. "^8P_6 c. "^8P_5(6!) d. none of these

In a three-storey building, there are four rooms on the ground floor, two on the first and two on the second floor. If the rooms are to be allotted to six persons, one person occupying one room only, the number of ways in which this can be done so that no floor remains empty is a. "^8P_6-2(6!) b. "^8P_6 c. "^8P_5(6!) d. none of these

In a three-storey building, there are four rooms on the ground floor, two on the first and two on the second floor. If the rooms are to be allotted to six persons, one person occupying one room only, the number of ways in which this can be done so that no floor remains empty is a. "^8P_6-2(6!) b. "^8P_6 c. "^8P_5(6!) d. none of these

In a three-storey building, there are four rooms on the ground floor, two on the first and two on the second floor. If the rooms are to be allotted to six persons, one person occupying one room only, the number of ways in which this can be done so that no floor remains empty is a. "^8P_6-2(6!) b. "^8P_6 c. "^8P_5(6!) d. none of these

The perimeter of the floor of a room is 18 m and its height is 3 m. What is the area of 4 walls of the room?