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An aeroplane leaves an airport and flies...

An aeroplane leaves an airport and flies due west at a speed of 2100 km per hour. At the same time, another aeroplane leaves the same airport and flies due south at a speed of 2000 km per hour. How far apart will be the two planes after `1` hours?

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The correct Answer is:
`2900 km`
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KUMAR PRAKASHAN-TRIANGLES-PRACTICE THOROUGHLY
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  13. In an equilateral ABC, E is a point on BC such that BE= (1)/(4)BC. Pro...

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