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Class 10MathematicsArithmetic Progressions (AP)Word problems based on APsExpert
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In a saving challenge (90) rupees are deposited on the first day and (30) rupees more each next day. What is the total saving in (14) days?

Answer and explanation

Correct answer: (3990)

The amounts are the AP (90,120,150,\ldots) and (S_{14}=3990). Exam tip: treat the number of days as the number of terms.

Related tags

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