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Class 10MathematicsArithmetic Progressions (AP)Word problems based on APsHard
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In an online course (5) videos are uploaded in the first week and (4) more videos each next week. How many videos are uploaded in (20) weeks?

Answer and explanation

Correct answer: (860)

The video numbers are (5,9,13,\ldots) and (S_{20}=860). Exam tip: take the number of weeks as the number of terms.

Related tags

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