exam Maths Puzzle Numerical Ability

A steamboat travels 8 km/h faster than a freighter. The steamboat travels 88 km in the same time the freighter travels 53 km. Find the speed of the steamboat.

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assume that all variables are non negative real numbers

5th square root of -243x^30y^31= determine rather the lines through each pair of point are parallel (2,-2) and (-8,10) (-7,-1) and (-2,5)