Q65.The number of terms in an A. P. is even, the sum of the odd terms in it is 24 and that the even terms is 30. If the last term exceeds the first term by 10 12 , then the number of terms in the A. P. is (1) 4 (2) 8 (3) 16 (4) 12
What This Question Tests
The question involves setting up simultaneous equations using the sum of odd-positioned terms and even-positioned terms in an AP, along with the relation between the first and last terms, to find the number of terms.
Concepts Tested
Formulas Used
Sn = (n/2)(a + l)
Sn = (n/2)(2a + (n-1)d)
an = a + (n-1)d
📚 NCERT Sections This Tests
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Physics Class 11 · Chapter 6
6.11 Dynamics of rotational the motion of extended bodies. motion about a fixed axis A large class of problems with extended bodies can be
1.3 — Define The Following Terms:
Chemistry Class 11 · Chapter 1
1.3 Define the following terms: (i) Mole fraction (ii) Molality (iii) Molarity (iv) Mass percentage.
14.2 — Which Of The Statements Given In Exercise 14.1 Is True For P-Type
Physics Class 12 · Chapter 14
14.2 Which of the statements given in Exercise 14.1 is true for p-type semiconductos.
📋 Question Details
- Chapter
- Sequences & Series
- Topic
- Arithmetic Progression properties
- Year
- 2014
- Shift
- 19 Apr Online
- Q Number
- Q65
- Type
- MCQ
- NCERT Ref
- Class 11 Mathematics Ch 9: Sequences and Series
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