Question: Laws and Order

Comment on Laws and Order

I just started using site for my prep. Initially everything was going fine but suddenly, the videos won't play. Please help. I am a registered user.
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Please clear the cache on your browser. Here are the instructions for doing so: https://kb.iu.edu/d/ahic

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In step 3, (-4) x 2 shouldn´t it be +8?? (-)(-)= +??
greenlight-admin's picture

You are correct when you write (-)(-)= +
In other words, (NEGATIVE)(NEGATIVE) = POSITIVE

However, in (-4) x 2, we have (NEGATIVE)(POSITIVE)

That is, -4 is negative and 2 is positive.

So, (-4) x 2 = -8

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Whenever you encounter a quantitative question with answer choices, be sure to SCAN the answer choices before performing any calculations. In many cases, the answer choices provide important clues regarding how to best solve the question. 

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