3
Answer: CSet 10: Linear Equations
Explanation
If x is 40% of y, and y is 20% of z, what percent of z is x?
What percent is x of z?
A.
20%
B.
60%
C.✓ Correct
8%
D.
800%
Detailed Explanation
Choice C is correct. x = 0.40 y. y = 0.20 z. x = 0.40(0.20 z) = 0.08 z. 0.08 = 8%.
Key Steps:
•
The correct answer is 8%
Why others are wrong:
A: Choice A is incorrect and may result from a calculation error.
B: Choice B is incorrect and may result from a calculation error.
D: Choice D is incorrect and may result from a calculation error.
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