If 4x = 2y = 20, what is the value of 24xy?

Correct answer marked below

A

40

B

200

C

400

D

600

1200

Correct

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Given that 4x = 2y = 20, we can find the values of x and y. From 4x = 20, we have x =…

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What this question tests

Your ability to manipulate linear and quadratic expressions, substitute unknowns, and solve equations under time pressure.

Losing a sign when moving terms across the equals sign, or dividing both sides by a variable that could equal zero.

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