An architect draws a scaled down plan of a building. On the map, the dimensions of a room is written as 5 cm × 4 cm. According to the scale that he uses, 2 cm = 100 km. What are the actual dimensions of the room?

250 m × 200 m

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250 km × 200 km

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250 cm × 200 cm

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2.50 km × 20.0 km

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Solution

The correct option is B
250 km × 200 km

Given that, 2 cm = 100 km

Therefore, 1 cm is equivalent to 50 km.

Actual dimensions of the room
= (5 × 50) km × (4 × 50) km
= 250 km × 200 km

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Q. Question 18

In a blueprint of a room, an architect has shown the height of the room as 33 cm. If the actual height of the room is 330 cm, then the scale used by her is
(a) 1 : 11
(b) 1 : 10
(c) 1 : 100
(d) 1 : 3

Q. Question 18

In a blueprint of a room, an architect has shown the height of the room as 33 cm. If the actual height of the room is 330 cm, then the scale used by her is
(a) 1 : 11
(b) 1 : 10
(c) 1 : 100
(d) 1 : 3

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An architect draws a scaled down plan of a building. On the map, the dimensions of a room is written as 5 cm × 4 cm. According to the scale that he uses, 2 cm = 100 km. What are the actual dimensions of the room?

The correct option is B 250 km × 200 km Given that, 2 cm = 100 km Therefore, 1 cm is equivalent to 50 km. Actual dimensions of the room = (5 × 50) km × (4 × 50) km = 250 km × 200 km

The correct option is B
250 km × 200 km

Given that, 2 cm = 100 km

Therefore, 1 cm is equivalent to 50 km.

Actual dimensions of the room
= (5 × 50) km × (4 × 50) km
= 250 km × 200 km