- Mon Jan 18, 2021 7:00 pm
One of the best ways to test whether an Assumption answer is correct, wisesther, is to use the Assumption Negation TechniqueTM. Negate that answer, which means make it untrue. If that negation destroys the argument, you have the right answer! This is because the correct answer is necessary - it must be true - if the argument is to hold water. Wrong answers will, when negated, strengthen the argument, or just weaken it a little, or do nothing at all. The right answer, when negated, takes away something essential and makes the argument fall apart.
Now, negate answer E. What if people never drive when it is feasible to walk? That is, what if everyone is already doing their part and only driving when they cannot walk to their destination? If that's true, then walking whenever feasible would not do anything to reduce pollution any further than it is, because we are all already doing all we can! If we have maximized our walking-to-driving ratio, we can't increase it any further, and cannot have any additional impact beyond what we have already done. The argument falls completely apart, proving that this is the correct answer!
Try that on the other answer choices and you'll see that none of them are necessary for this argument to work. And try this technique going forward on any contenders you may be contemplating for other Assumption questions, because it always works!
Adam M. Tyson
PowerScore LSAT, GRE, ACT and SAT Instructor
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