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Class 10MathematicsArithmetic Progressions (AP)Word problems based on APsExpert
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In a festival decoration the first gate has (90) lights and each next gate has (25) more lights. How many lights are there on (10) gates?

Answer and explanation

Correct answer: (2025)

The light numbers are (90,115,140,\ldots) and (S_{10}=2025). Exam tip: treat each gate as one term.

Related tags

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