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Class 10MathematicsArithmetic Progressions (AP)Word problems based on APsExpertLevel 70
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In a training program practice is (45) minutes on the first day and (15) minutes more each next day. How many days are needed to complete (2520) minutes of practice?

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Answer and explanation

Correct answer: (16)

The practice times are (45,60,75,\ldots) and (S_n=2520) gives (n=16). Exam tip: set the target total equal to (S_n).

Related tags

ApWord-ProblemTrainingTarget

Frequently asked questions

What is the correct answer to this question?

(16)

Why is this the correct answer?

The practice times are (45,60,75,\ldots) and (S_n=2520) gives (n=16). Exam tip: set the target total equal to (S_n).

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Arithmetic Progressions (AP). Topic: Word problems based on APs.

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