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Class 10MathematicsArithmetic Progressions (AP)Word problems based on APsExpert
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In a library the first rack has (30) books and there are (1782) books on (22) racks. If each next rack has an equal increase, what is the increase?

Answer and explanation

Correct answer: (5)

Using (S_{22}=1782) and (a=30) gives (d=5). Exam tip: find the common difference from total and first term.

Related tags

ApWord-ProblemLibraryDifferenceWord Problems Based On ApsArithmetic Progressions (Ap)Arithmetic Progressions ApMathematics
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