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21. the diagonal of a rectangular field is 60 m more than its shortest side it its longest side is
30 m more than the shortest side then find the area of the field.
22. A train travels a distance of 300 km with uniform speed. If its speed is decreased by
5km/h it would have taken 2 hours more to cover the same distance. Find the speed of the
train
23. Find the roots of the quadratic equation 6x2 – 6V 2x + 3 = 0 by formula method
24. A motor boat whose speed is 15 km/h in still water goes 30 km downstream & comes
back in a total of 4 hours 30 minutes determine the speed of the stream​

Answer 1

Answer:

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