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permutation and combination gmat quant

Permutation and Combination | Avoid these 3 Mistakes | GMAT Quant

Like any GMAT Quant topic, Permutation and Combination has its own traps. Most students fall in these traps and ultimately, are not able to secure their target GMAT score....
gmat-permutation-combination-gmat-quant

GMAT Permutation and Combination | When to Add and Multiply

Are you always confused whether to add or multiply the cases while solving GMAT permutation and combination questions? Do you often get questions incorrect simply...
Introduction to GMAT Algebra

GMAT Algebra and Algebraic Expressions | Linear & Quadratic Equations

The word Algebra was derived from the Arabic word “al-jabr” meaning “reunion of broken parts”.  In algebra, arithmetic computations are carried out with letters standing for...
Introduction to GMAT Algebra

GMAT Algebra and Algebraic Expressions | Linear & Quadratic Equations

The word Algebra was derived from the Arabic word “al-jabr” meaning “reunion of broken parts”.  In algebra, arithmetic computations are carried out...

If x, y, and k are positive and x is less than y, then (x + k) / (y + k)  is – OGQR 2020 Question #80 with Solution

OGQR 2020: Question No. 80 If x, y, and k are positive and x is less than y, then (x + k) / (y + k)  is Source OGQR 2020 Type Problem Solving...

If half the result obtained when 2 is subtracted from 5x is equal to the sum of 10 and 3x, what is the value of x? – OGQR 2020 Question #77 with Solution

OGQR 2020: Question No. 77 If half the result obtained when 2 is subtracted from 5x is equal to the sum of 10 and 3x, what is the value...

How old is Jane? – OGQR 2020 Question #208 with Solution

OGQR 2020: Question No. 208 How old is Jane? Ten years ago, she was one-third as old as she is now. In 15 years, she will be twice as...

Category: Algebra

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In any sequence of n nonzero numbers, a pair of consecutive terms with opposite signs represents a sign change. For example, the sequence –2, 3, –4, 5 has three sign changes. Does the sequence of nonzero numbers s1, s2, s3, . . ., sn have an even number of sign changes? – OG 2020 Question #312 with Solution

A 2 min read OG 2020: Question No. 312 In any sequence of n nonzero numbers, a pair of consecutive terms with opposite signs represents a sign change. For example, the sequence –2, 3, –4, 5 has three sign changes. Does the...

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