19. The area of four walls of a room is 120 m2. If the length of the room is twice its breadth and20. A room is 8.5 m long, 6.5 m broad and 3.4 m high. It has two doors, each measuringand 3.5 m respectively. Find the height of the P.the height is 4 m, find the area of the floorfa.s m by i m) and two windows, each measuring (2 m by 1 m). Find the cost of painting tisfour walls at 160 per m2.

19. The area of four walls of a room is 120 m2. If the length of the r

1.	19. The area of four walls of a room is 120 m2. If the length of the room is twice its breadth and20. A room is 8.5 m long, 6.5 m broad and 3.4 m high. It has two doors, each measuringand 3.5 m respectively. Find the height of the P.the height is 4 m, find the area of the floorfa.s m by i m) and two windows, each measuring (2 m by 1 m). Find the cost of painting tisfour walls at 160 per m2.
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