A surveying drone can map 96 hectares of farmland in 8 hours. If the drone continues working at the same rate, how many hectares of land will it map in 21 hours ?
252
The rate of mapping is found by dividing the area mapped by the time taken.
\(\text{Rate} = \frac{96}{8} = 12\) hectares per hour.
For 21 hours, the area mapped is \(12 \times 21 = 252\)
Hence, the drone will map 252 hectares of land in 21 hours.
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