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Class 10MathematicsArithmetic Progressions (AP)Word problems based on APsExpert
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A stock has (320) boxes on the first day and (20) fewer boxes each next day. What is the total observed number of boxes over (11) days?

Answer and explanation

Correct answer: (2420)

The box numbers are (320,300,280,\ldots) and (S_{11}=2420). Exam tip: take (d) negative for decreasing stock.

Related tags

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