Q64.If the A.M. between pth and qth terms of an A.P. is equal to the A.M. between rth and sth terms of the same A.P., then p + q is equal to (1) r + s −1 (2) r + s −2 (3) r + s + 1 (4) r + s ,
What This Question Tests
This is a straightforward question testing the definitions of the nth term of an Arithmetic Progression and the Arithmetic Mean, requiring simple algebraic equality.
Concepts Tested
Formulas Used
a_n = a + (n-1)d
AM(x, y) = (x+y)/2
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📋 Question Details
- Chapter
- Sequences & Series
- Topic
- Arithmetic Progression
- Year
- 2012
- Shift
- 26 May Online
- Q Number
- Q64
- Type
- MCQ
- NCERT Ref
- Class 11 Mathematics Ch 9: Sequences and Series
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