एक पंक्ति में (1), दूसरी में (2), और इसी तरह (11)वीं पंक्ति तक बिंदु रखे गए। कुल बिंदु कितने होंगे?

Dots are placed with (1) in the first row, (2) in the second row, and so on up to the (11)th row. How many dots are there in total?

Author: Muft Shiksha Editorial Team Published: Updated:
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Correct Answer

B. (66)

Step 1

Concept

The total dots are \(1+2+\cdots+11=66\). Such an arrangement forms the sum of natural numbers.

Step 2

Why this answer is correct

The correct answer is B. (66). The total dots are \(1+2+\cdots+11=66\). Such an arrangement forms the sum of natural numbers.

Step 3

Exam Tip

कुल बिंदु \(1+2+\cdots+11=66\) होंगे। ऐसी व्यवस्था में प्राकृतिक संख्याओं का योग बनता है।

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Mathematics Answer, Explanation and Revision Hints

एक पंक्ति में (1), दूसरी में (2), और इसी तरह (11)वीं पंक्ति तक बिंदु रखे गए। कुल बिंदु कितने होंगे? / Dots are placed with (1) in the first row, (2) in the second row, and so on up to the (11)th row. How many dots are there in total?

Correct Answer: B. (66). Explanation: कुल बिंदु \(1+2+\cdots+11=66\) होंगे। ऐसी व्यवस्था में प्राकृतिक संख्याओं का योग बनता है। / The total dots are \(1+2+\cdots+11=66\). Such an arrangement forms the sum of natural numbers.

Which concept should I revise for this Mathematics MCQ?

The total dots are \(1+2+\cdots+11=66\). Such an arrangement forms the sum of natural numbers.

What exam hint can help solve this Mathematics question?

कुल बिंदु \(1+2+\cdots+11=66\) होंगे। ऐसी व्यवस्था में प्राकृतिक संख्याओं का योग बनता है।