An architect drew a scaled down plan of a building. On the map, the dimensions of a room are written as 5cm $\times$ 4cm.

If the scale used by him is, 2cm = 10 m. What will be the equivalent ratio of the length and breadth of the actual room.

250m × 200m

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250km × 200km

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250cm × 200cm

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2.50km × 20.0km

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Solution

The correct option is A
250m × 200m

Given : 2 cm = 10m

$\Rightarrow$ 1 cm is equivalent to 5 m.

Actual dimensions of the room = (5 $\times$ 5) m $\times$ (4 $\times$ 5) m = 25 m $\times$ 20 m

$∴$ Equivalent Ratio between the length and the breadth of the actual room = 25 : 20

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An architect drew a scaled down plan of a building. On the map, the dimensions of a room are written as 5cm × 4cm. If the scale used by him is, 2cm = 10 m. What will be the equivalent ratio of the length and breadth of the actual room.

The correct option is A 250m × 200m Given : 2 cm = 10m ⇒ 1 cm is equivalent to 5 m. Actual dimensions of the room = (5×5) m × (4×5) m = 25 m × 20 m ∴Equivalent Ratio between the length and the breadth of the actual room = 25 : 20

An architect drew a scaled down plan of a building. On the map, the dimensions of a room are written as 5cm $\times$ 4cm.

If the scale used by him is, 2cm = 10 m. What will be the equivalent ratio of the length and breadth of the actual room.

The correct option is A
250m × 200m

Given : 2 cm = 10m

$\Rightarrow$ 1 cm is equivalent to 5 m.

Actual dimensions of the room = (5 $\times$ 5) m $\times$ (4 $\times$ 5) m = 25 m $\times$ 20 m

$∴$ Equivalent Ratio between the length and the breadth of the actual room = 25 : 20