[GMAT math practice question]
40% of the students at a school take a math class and 60% of the school’s students take a physics class. What percent of students at the school take a math class, but not a physics class?
1) 25% of students take both a math class and a physics class.
2) 25% of students take a physics class, but do not take a math class.
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Forget conventional ways of solving math questions. For DS problems, the VA (Variable Approach) method is the quickest and easiest way
...
40% of the students at a school take a math class and 60% of the school’s students take a physics class. What percent of students at the school take a math class, but not a physics class?
1) 25% of students take both a math class and a physics class.
2) 25% of students take a physics class, but do not take a math class.
=>
Forget conventional ways of solving math questions. For DS problems, the VA (Variable Approach) method is the quickest and easiest way
...
