exam Maths Puzzle Numerical Ability

suppose that 2 poles are 96 feet apart. One pole is 12 feet high, the second one is 52 feet high. There is a wire from the top of each pole to the base on the other pole. How high above the ground do the wires cross?

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exam Other Question

28 x .0250+K
___________ =.0250
28+4
solve the system by addition or subtitution.
3x-4y=8
6x-2y=10