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## Arithmetic - Replacement in Mixtures

Replacement is a very interesting, not to mention useful, concept in GMAT. So brace yourself to learn some new things today.

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## Arithmetic - Factors of Consecutive Integers

Trick 1: Pick any two consecutive integers (Don’t tell me what they are!). Multiply them. Whatever your numbers, the product is an even number! If you are wondering how I knew that, you desperately ne...

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## Arithmetic - Weights in Weighted Average

We have discussed weighted averages in detail but one thing we are yet to talk about is how you decide what the weights will be in weighted average problems. It is not always straight forward to ident...

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## Arithmetic - Mixtures

If you are not a Quant jock, I am sure you feel a chill run down your spine every time you see a mixtures problem. But guess what, they are really simple if you just use the same weighted average conc...

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## Arithmetic - Work Rate using Joint Variation

Today, let's discuss work-rate using joint variation. Though we will use the concepts of joint variation, we will solve the questions using a simple methodology.

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## Arithmetic - MarkUp, Discount, Profit

Mark Up, Discount and Profit questions confuse a lot of people. But, actually, most of them are absolute sitters — very easy to solve — a free ride! How? We will just see. Let me begin with the previo...

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## Arithmetic - Successive Percentage Changes

What does a 20% sale with an additional 25% off on the \$85 sweater that you have your eye on mean to you? It means a big rebate. Let’s see how much: If you reduce 85 by 20%, it becomes 85 * 4/5 = \$68....

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## Arithmetic - Use of Variation

Today, we would like to discuss a Veritas Prep work question. The intent is to show you how simple your calculations can get when you use the methods we discussed in our Ratios module. I couldn’t say...

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## Work & Rate - Shortcuts and all!

What helps in tests which need you to have speed and accuracy both is hacks - the innovative shortcuts for various questions – the way very smart people would solve the question – without putting in t...