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8 Cards in this Set
- Front
- Back
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What should you do first when working on a problem solving question on the GMAT? |
Read the question briefly and cross-off every response on your scratch paper which cannot be the solution to the questions (crazy answers) and look for partial answers (don't stop calculating) |
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When can I apply “plugging in” in a problem solving question? |
If all answers are variables, percentages or ratios of an unspecified amount. Always plug in a number that makes the problem easy for you. Avoid 0 and 1, for percentage problems 100 usually fits in quite well.
It's useful to start with answer choice C and go up and down. |
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How do I calculate the range when the standard deviation and average (arithmetic mean) are given? |
Mean - standard deviation to mean + standard deviation |
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In how many ways can you arrange 5 books in a bookcase? |
5! = 120 |
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If the "perimeter of a right isosceles triangle" is asked what is meant? |
The sum of the lengths of all sides of a triangle with one 90°angle and two sides of equal length |
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If the "perimeter of a right isosceles triangle" is asked what is meant? |
The sum of the lengths of all sides of a triangle with one 90°angle and two sides of equal length |
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Addition: 124 + 17 -------- |
1 124 + 17 -------- 141
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Division
124:7 = |
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