exam Maths Puzzle Numerical Ability

A wooden model galleon is built using a 1:90 scale. The length of the model is 520 millimeters and the height is 615 millimeters. Solve the proportions to find the actual length and height of the galleon.

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exam Other Question
Assuming that a planet is a perfect sphere with a circumference of 20771 km and an average density of 2.41 g/mL, what is its approximate mass? 2x^2 - x - 3/3x^2 + 7x +4 . 3x^2 - 11x -20/4x^2 - 9