exam Maths Puzzle Numerical Ability

Solve for x simplifying complex rational expressions

Fraction also a fraction
9 - 1 = 8
x-5 ,,, x + 5

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exam Other Question

i) Problem: A result of Kepler�s harmonic law is that the mass of a planet (M) with a satellite is directly proportional to the cube of the mean distance (d) from the satellite to two regular hexagons have areas of 54 square root of 3 and 150 square root of 3. What is the ratio of their perimeters?