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Class 10MathematicsArithmetic Progressions (AP)Word problems based on APsMediumLevel 70
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A reservoir has (500) litres of water on the first day and (25) litres less each next day. How much water remains on the (12)th day?

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Answer and explanation

Correct answer: (225)

This is a decreasing AP and (a_{12}=500+11(-25)=225). Exam tip: write the decrease as a negative difference.

Related tags

ApWord-ProblemWater

Frequently asked questions

What is the correct answer to this question?

(225)

Why is this the correct answer?

This is a decreasing AP and (a_{12}=500+11(-25)=225). Exam tip: write the decrease as a negative difference.

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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