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Class 10MathematicsArithmetic Progressions (AP)Word problems based on APsMediumLevel 72
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The total sale of a shop for (12) weeks is (990) items. If the sale increases by (6) items every week then what was the sale in the first week?

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Answer and explanation

Correct answer: (50)

Using (S_{12}=990) and (d=6) gives (a=50). Exam tip: solve the sum formula for the unknown first term.

Related tags

ApWord-ProblemFirst-Term

Frequently asked questions

What is the correct answer to this question?

(50)

Why is this the correct answer?

Using (S_{12}=990) and (d=6) gives (a=50). Exam tip: solve the sum formula for the unknown first term.

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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