Angles and Arguments

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Data Sufficiency - Use Number Line for Number Properties

Here is an often-repeated complaint we hear from test takers – Data Sufficiency questions that deal with number properties are very difficult to handle (even for people who find problem-solving number...

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Number Properties - Finding Last Two Digits

Cyclicity is nothing but pattern recognition. You see that when you multiply 2 by itself, there is a pattern of last digit which goes 2, 4, 8, 6, 2, 4, 8, 6 and so on. We can use the same principle f...

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Number Properties - A Neat Remainders Shortcut

We firmly believe that teaching someone is a most productive learning for oneself and every now and then, something happens that strengthens this belief of ours. It’s the questions people ask – knowin...

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Number Properties - Rules of Rounding Decimals

You just slip to the side, and you look for a five. Well if the number that you see is a five or more, You gotta round up now, that’s for sure. If the number that you see is a four or less,

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Data Sufficiency - Easy (A)/(B) Trap Questions

We know that ‘Easy C’ is a common trap of DS questions – have you wondered whether there could be trap called ‘Easy A/B’ such that the answer would actually be (C)? Such questions also exist!

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Data Sufficiency - Using Data from One for Another (Going from 48 to 51)

Another method of saving time on simple questions – use data given in one statement to examine the other! Now you might think we have lost it! After all, you know very well that in Data Sufficiency qu...

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Arithmetic - Ratios and Percentages Problem (Going from 48 to 51)

Above Q48, the waters are pretty choppy! Questions are hard less because of the content and more because they look so unique – even though they’re testing the same concepts.

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Arithmetic - Work-Rate Using Variation

I couldn’t say it enough – develop a love for ratios. You will save a huge amount of time in lots of questions. Most of our Arithmetic (Ratios and Variation, Time Speed Distance, Weighted Averages, Wo...

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Arithmetic - Unlikely Uses of Weighted Averages

We know the usual questions in which we use weighted averages - two groups coming together, two solutions getting mixed etc but sometimes weighted averages come in very handy in un

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Data Sufficiency - How to Get Multiple Answers

Today we will discuss a problem we sometimes face while attempting to solve Data Sufficiency questions for which the answer is option (E). What happens when it is not very intuiti

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Data Sufficiency - Use Number Line for Number Properties

Number Properties - Finding Last Two Digits

Number Properties - A Neat Remainders Shortcut

Number Properties - Rules of Rounding Decimals

Data Sufficiency - Easy (A)/(B) Trap Questions

Data Sufficiency - Using Data from One for Another (Going from 48 to 51)

Arithmetic - Ratios and Percentages Problem (Going from 48 to 51)

Arithmetic - Work-Rate Using Variation

Arithmetic - Unlikely Uses of Weighted Averages

Data Sufficiency - How to Get Multiple Answers

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