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Question

In a map, a distance of 10 km on land is equal to 110 cm. If two places are 512 cm apart on the map, then what is the actual distance between them?


  1. 211 km

  2. 50 km

  3. 100 km

  4. 550 km

  5. undefined


Solution

D

550 km


Let 512 cm represent x km.

Now the problem reduces to 110 cm:10 km::512 cm:x km

i.e., 11010=512x

1100=112x

Thus, x=11×1002 = 550 km

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