exam Maths Puzzle Numerical Ability

If two numbers are opposite of each other, are their reciprocals also opposite of each other?

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exam Other Question

The second hand on a clock is 6 inches long. How far does the tip of the hand move in 40 seconds? Hi. Can I have some help finishing this expression?

Find all solutions of the equation and express them in the form a + bi.

x^2 + 7x + 12 = 0