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Class 10MathematicsArithmetic Progressions (AP)Word problems based on APsMedium
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In an exam the first question carries (5) marks and each next question carries (2) more marks. What are the total marks of the first (14) questions?

Answer and explanation

Correct answer: (252)

The marks form the AP (5,7,9,\ldots) and (S_{14}=252). Exam tip: take the number of questions as (n) and find the sum.

Related tags

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