Discussion
On the map of a big city following scale is mentioned.
Scale : 1 cm = 845 m
If on this map the measured distance between two important locations of the city is 13.7 cm, the actual distance between the two locations is approximately :
Answer: B
The actual distance is about 11.57 km.
Each centimetre on the map stands for 845 m, so multiply:
\[ \begin{aligned} 13.7 \times 845 &= 11576.5\ \text{m} \\ &\approx 11.58\ \text{km} \end{aligned} \]
11.57 km is the option this rounds to (11.5765 km cut to two decimal places). 12.90 km, 12.50 km and 11.02 km would correspond to map distances of about 15.3 cm, 14.8 cm and 13.0 cm.
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