Concept-wise Practice

cumulative-sum MCQ Questions for Class 9

cumulative-sum se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

1 questions tagged with cumulative-sum.

अनुक्रम \(1,2,4,7,11,\ldots\) में प्रत्येक बार जोड़ी जाने वाली संख्या \(1,2,3,4,\ldots\) है। आठवाँ पद क्या होगा?

In the sequence \(1,2,4,7,11,\ldots\), the added numbers are \(1,2,3,4,\ldots\). What is the eighth term?

Explanation opens after your attempt
Correct Answer

D. (29)

Step 1

Concept

Continuing gives (16,22,29), so the eighth term is (29). Exam tip: write each successive addition to avoid mistakes.

Step 2

Why this answer is correct

The correct answer is D. (29). Continuing gives (16,22,29), so the eighth term is (29). Exam tip: write each successive addition to avoid mistakes.

Step 3

Exam Tip

आगे (16,22,29) मिलते हैं इसलिए आठवाँ पद (29) है। क्रमागत जोड़ को पूरा लिखना गलती घटाता है।

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