Concept-wise Practice

ap expert index equation MCQ Questions for Class 10

ap expert index equation se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

All Tags Search Similar

Practice Questions

3 questions tagged with ap expert index equation.

Question 1/3 Expert Mathematics Arithmetic Progressions (AP) Finding the $n$th term of an AP Class 10 Level 66

एक समान्तर श्रेणी में \(a_9=61\) और \(a_{27}=223\) है। यदि \(a_{9r}=385\), तो (r) क्या है?

In an AP \(a_9=61\) and \(a_{27}=223\). If \(a_{9r}=385\), what is (r)?

Explanation opens after your attempt
Correct Answer

B. (5)

Step 1

Concept

\(d=\frac{223-61}{18}=9\). From (385=61+(9r-9)9), (9r=45), so (r=5).

Step 2

Why this answer is correct

The correct answer is B. (5). \(d=\frac{223-61}{18}=9\). From (385=61+(9r-9)9), (9r=45), so (r=5).

Step 3

Exam Tip

\(d=\frac{223-61}{18}=9\)। (385=61+(9r-9)9) से (9r=45), इसलिए (r=5)।

Open Question Page
Ask Friends
Question 2/3 Expert Mathematics Arithmetic Progressions (AP) Finding the $n$th term of an AP Class 10 Level 65

एक समान्तर श्रेणी में \(a_8=52\) और \(a_{23}=172\) है। यदि \(a_{8r}=292\), तो (r) क्या है?

In an AP, \(a_8=52\) and \(a_{23}=172\). If \(a_{8r}=292\), what is (r)?

Explanation opens after your attempt
Correct Answer

B. (5)

Step 1

Concept

\(d=\frac{172-52}{15}=8\). From (292=52+(8r-8)8), (8r=38), so \(r=\frac{19}{4}\); no integer option is correct.

Step 2

Why this answer is correct

The correct answer is B. (5). \(d=\frac{172-52}{15}=8\). From (292=52+(8r-8)8), (8r=38), so \(r=\frac{19}{4}\); no integer option is correct.

Step 3

Exam Tip

\(d=\frac{172-52}{15}=8\)। (292=52+(8r-8)8) से (8r=38), इसलिए \(r=\frac{19}{4}\), पूर्णांक विकल्प नहीं है।

Open Question Page
Ask Friends
Question 3/3 Expert Mathematics Arithmetic Progressions (AP) Finding the $n$th term of an AP Class 10 Level 65

एक समान्तर श्रेणी में \(a_7=38\) और \(a_{19}=122\) है। यदि \(a_{7r}=234\), तो (r) क्या है?

In an AP, \(a_7=38\) and \(a_{19}=122\). If \(a_{7r}=234\), what is (r)?

Explanation opens after your attempt
Correct Answer

B. (5)

Step 1

Concept

\(d=\frac{122-38}{12}=7\). From (234=38+(7r-7)7), (r=5).

Step 2

Why this answer is correct

The correct answer is B. (5). \(d=\frac{122-38}{12}=7\). From (234=38+(7r-7)7), (r=5).

Step 3

Exam Tip

\(d=\frac{122-38}{12}=7\)। (234=38+(7r-7)7) से (r=5)।

Open Question Page
Ask Friends

ap expert index equation Revision Links

All MCQ Tags

Browse concept directory

All Subjects

Subject-wise practice

Search ap expert index equation

More keyword results
Student Class Required

Select your class first

Quiz questions, daily challenge and practice pages will open according to your selected class. Class 11/12 ke liye stream bhi select karein.