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Subjects
Class 10MathematicsArithmetic Progressions (AP)Word problems based on APsMedium
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In a cleanliness campaign (2) lanes are cleaned on the first day and (1) more lane is cleaned each next day. How many lanes are cleaned in (14) days?

Answer and explanation

Correct answer: (119)

The lane numbers are (2,3,4,\ldots) and (S_{14}=119). Exam tip: a sequence with small constant increase is also an AP.

Related tags

ApWord-ProblemCleanlinessWord Problems Based On ApsArithmetic Progressions (Ap)Arithmetic Progressions ApMathematicsClass 10 Mcq
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