Question

and 4 m respectively. Find the length of the room.
18. A room is 8.5 m long, 6.5 m broad and 3.4 m high. It has two doors, each measuring 1.5 m
by 1 m, and two windows, each measuring 2 m by 1 m. Find the cost of painting its four
walls at Rs 4.60 per square metre.
The area of four walls of a room is 120 m2. If the length of the room is twice its breadth and
10​

Answer 1

Answer:

Find the area of the 4 walls including the doors:

Area of the 4 walls = 2(8.5 + 6.5) x 3.4

Area of the 4 walls = 102 m²

Find the area of the two doors:

1 door = 1.5 x 1

1 door = 1.5 m²

2 doors = 1.5 x 2

2 doors = 3 m²

Find the area of the two windows:

one window = 2 x 1

one window = 2 m²

two windows = 2 x 2

two windows = 4 m²

Find the area of the 4 walls without the doors:

Area = 102 - 3 - 4

Area = 95 m²

Find the cost:

1 m² = Rs 160

95 m² = 95 x 160

95 m² = Rs 15,200

Answer 2

Answer:

18 .please refer to the above attachment for explanation .The answer will be Rs.15200.

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