A factory makes (720) units on the first day and (24) fewer units each next day. What is the total production in the first (16) days?
Answer and explanation
Correct answer: (8640)
The production is the decreasing AP (720,696,672,\ldots) and (S_{16}=8640). Exam tip: treat decrease as a negative common difference.
Frequently asked questions
What is the correct answer to this question?
(8640)
Why is this the correct answer?
The production is the decreasing AP (720,696,672,\ldots) and (S_{16}=8640). Exam tip: treat decrease as a negative common 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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