Last year Publisher X published 1,100 books, consisting of first editions, revised editions, and reprints. How many first editions did Publisher X publish last year? – OGQR 2020 Question #207 with Solution

A 1 minute readSolution Steps 1 & 2: Understand Question and Draw Inferences We are given that: Last year publisher X published 1,100 books, consisting of first editions, revised editions, and reprints. Number of First edition + Revised Editions + Reprints published = 1100 We need to find: The number of first editionsRead more…

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 minute readSolution Steps 1 & 2: Understand Question and Draw Inferences In this question, we are given 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. First time fromRead more…

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