Difference between revisions of "1952 AHSME Problems/Problem 20"
(Created page with "== Problem== If <math> \frac{x}{y}=\frac{3}{4} </math>, then the incorrect expression in the following is: <math> \textbf{(A) \ }\frac{x+y}{y}=\frac{7}{4} \qquad \textbf{(B) \...") |
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Hence, the incorrect expression is <math> \boxed{\textbf{(E)}\ \frac{x-y}{y}=\frac{1}{4}} </math>. | Hence, the incorrect expression is <math> \boxed{\textbf{(E)}\ \frac{x-y}{y}=\frac{1}{4}} </math>. | ||
+ | Note: If you're bad at fraction manipulation, you can plug in <math>x=3</math> and <math>y=4</math> and find which expression is false. | ||
==See also== | ==See also== | ||
{{AHSME 50p box|year=1952|num-b=19|num-a=21}} | {{AHSME 50p box|year=1952|num-b=19|num-a=21}} | ||
{{MAA Notice}} | {{MAA Notice}} |
Latest revision as of 13:00, 24 January 2024
Problem
If , then the incorrect expression in the following is:
Solution
Let's consider each answer choice.
Hence, the incorrect expression is .
Note: If you're bad at fraction manipulation, you can plug in and and find which expression is false.
See also
1952 AHSC (Problems • Answer Key • Resources) | ||
Preceded by Problem 19 |
Followed by Problem 21 | |
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All AHSME Problems and Solutions |
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