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Class 10MathematicsArithmetic Progressions (AP)Word problems based on APsHardLevel 70
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In an exercise plan (20) push-ups are done on the first day and (5) more push-ups each next day. How many push-ups are done in (15) days?

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Answer and explanation

Correct answer: (825)

The push-ups form the AP (20,25,30,\ldots), and (S_{15}=825). Exam tip: use the sum formula for total practice.

Related tags

ApWord-ProblemExercise-Sum

Frequently asked questions

What is the correct answer to this question?

(825)

Why is this the correct answer?

The push-ups form the AP (20,25,30,\ldots), and (S_{15}=825). Exam tip: use the sum formula for total practice.

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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