exam Maths Puzzle Numerical Ability

The melting point for an element is the temperature where the element changes from solid to liquid. If C represents degrees celsius and F represents Fahrenheit, the C= 5(F-32)/9

For what temperatures will mercury be a solid

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exam Other Question

Four fishermen collected fish. Each one (sequentially) took turn to take his (equal) share of fish from the pile, leaving an ever decreasing remainder for the next guy. If after al Find the solutions of the equation that are in the interval [0,2π). Please show steps (especially rearranging the equation to solve it. Thanks for helping me. I know the solution is 7pi/6, 11pi/6, pi/2.

sinb+2cos^(2)b=1