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Subjects
Class 10MathematicsArithmetic Progressions (AP)Word problems based on APsMedium
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On a mobile app (200) users join on the first day and (40) more users join each next day. How many users join in (9) days?

Answer and explanation

Correct answer: (3240)

The user numbers are (200,240,280,\ldots) and (S_9=3240). Exam tip: treat the daily increase as the common difference.

Related tags

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