किसी समान्तर श्रेणी में (a=5), (d=7) और \(a_n=103\) है। (n) का मान क्या है?

In an AP, (a=5), (d=7), and \(a_n=103\). What is the value of (n)?

Explanation opens after your attempt
Correct Answer

C. (15)

Step 1

Concept

From (103=5+(n-1)7), (98=7(n-1)), so (n=15). When finding the term number, remember to add (1) at the end.

Step 2

Why this answer is correct

The correct answer is C. (15). From (103=5+(n-1)7), (98=7(n-1)), so (n=15). When finding the term number, remember to add (1) at the end.

Step 3

Exam Tip

(103=5+(n-1)7) से (98=7(n-1)), अतः (n=15)। पद संख्या निकालते समय अंत में (1) जोड़ना न भूलें।

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किसी समान्तर श्रेणी में (a=5), (d=7) और \(a_n=103\) है। (n) का मान क्या है? / In an AP, (a=5), (d=7), and \(a_n=103\). What is the value of (n)?

Correct Answer: C. (15). Explanation: (103=5+(n-1)7) से (98=7(n-1)), अतः (n=15)। पद संख्या निकालते समय अंत में (1) जोड़ना न भूलें। / From (103=5+(n-1)7), (98=7(n-1)), so (n=15). When finding the term number, remember to add (1) at the end.

Which concept should I revise for this Mathematics MCQ?

From (103=5+(n-1)7), (98=7(n-1)), so (n=15). When finding the term number, remember to add (1) at the end.

What exam hint can help solve this Mathematics question?

(103=5+(n-1)7) से (98=7(n-1)), अतः (n=15)। पद संख्या निकालते समय अंत में (1) जोड़ना न भूलें।