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Maths Puzzle
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The total sides of 5 triangles, 10 squares, 2 hexagons, and 4 pentagons are
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3*5+4*10+6*2+5*4
7 years ago
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Emily was closely observing the proceedings for the vehicles at the parking lot. There were 'n' vehicles, 'x' of which are cars, 'y' are vans and the remainder are lorries. If every vehicle is equally likely to leave the lot, Emily wished to know the probability of:
a) van leaving first.
b) lorry leaving first.
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