Discussion

On a Union Territory map on its one corner following scale is mentioned.

Scale, 1 cm = 155 m

If a person measures the distance between two cities as 19.7 cm, the actual distance between the two cities is approximately :

Answer: C

The actual distance is about 3.05 km.

\[ \begin{aligned} 19.7 \times 155 &= 3053.5\ \text{m} \\ &\approx 3.05\ \text{km} \end{aligned} \]

3.10 km rounds 19.7 up to 20 cm, and 30.5 km and 31.00 km slip the decimal point by a factor of ten.

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