exam Maths Puzzle Numerical Ability

Please help me with this question:
A small firm produces both AM and AM/FM car radios. The AM radios take 15 h
to produce, and the AM/FM radios take 20 h. The number of productio

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exam Other Question

5 . Which of the following equations contains the solution points given?
x 1 5 10 9
y 450 90 45 50

A. xy = k
B. x2 + k = y
C. 4x - k = y
D. y = kx - 5 Is there a way or maybe an equation to tell what an imaginary number is going to be?

For example: i to the 14th power would be...