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In a saving plan, a child saves (1) rupee on the first day and (31) rupees on the (31)st day. If the amount increases by (1) rupee daily, what is the total saving?
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Answer and explanation
Correct answer: (496)
Total saving is (S_{31}=\frac{31\times32}{2}=496) rupees. A daily increase of (1) forms the sum of natural numbers.
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What is the correct answer to this question?
(496)
Why is this the correct answer?
Total saving is (S_{31}=\frac{31\times32}{2}=496) rupees. A daily increase of (1) forms the sum of natural numbers.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Sequences and Progressions. Topic: Sum of first n natural numbers.
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