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Solve the following: (i) Three consecu...

Solve the following:
(i) Three consecutive natural numbers are such that the square of the middle number exceeds the difference of the squares of the other two by 60. Find the numbers.
(ii) A train travels 360 km at a uniform speed. If the speed had been 5 km/h more, it would have taken 1 hour less for the same journey . Find the speed of the train.

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