exam Maths Puzzle Numerical Ability

I need help simplifying mixed quotients.
Simplify the complex fraction. 9+3/x
_________

x/4+ 1/12

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exam Other Question

Two cards are drawn from a standard deck of cards. Find the probability that a king or a red card is drawn. Write 2 different equations for which the solution set over the domain (0,1,2,3,4) is the given set. (0,3)