exam Maths Puzzle Numerical Ability

two busses are 515 miles apart. At 9:30 AM they start traveling toward each other at rates of 48 and 55 miles per hour. At what time will they pass each other?

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exam Other Question

the areas of corresponding faces of two similar triangular prisms are 49 cm square and 25 cm square. What is the ratio of the corresponding side legnths? of the perimeters? of the simplify square root of 3 times the square root of 75