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Class 10MathematicsArithmetic Progressions (AP)Word problems based on APsMedium
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A battery gains (7) percent charge in the first hour and (3) percent more charge each next hour. What is the total percentage charge gained in (8) hours?

Answer and explanation

Correct answer: (140)

The charge increases are (7,10,13,\ldots) and (S_8=140). Exam tip: percentage increases can also be used as AP terms.

Related tags

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