A plane left 30 mins later than its scheduled time and in order to reach the destination 1500 km away on time, it had to increase its speed by 100 km/h from the usual speed. Find its usual speed.
A
50 km/h
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B
500 km/h
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C
60 km/h
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D
600 km/h
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Solution
The correct option is B 500 km/h Disclaimer: The solution to the question will be the video shown right after this. This will be incorporated once tech support is provided.