1
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
If the sum of the first 9 terms of an AP is equal to sum of the first 11 terms, then what is the sum of the first 20 terms ?
2
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
If the 5th term of an AP is $\frac{1}{10}$ and its 10th term is $\frac{1}{5},$ then what is the sum of first 50 terms ?
3
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
What is the arithmetic mean of 50 terms of an AP with first term 4 and common difference 4 ?
4
NDA Mathematics 10 April 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Consider the following data for the next three (03) items that follow :
The marks obtained by 51 students in a class are in AP with its first term 4 and common difference 3.
What is the mean of the marks ?
Questions Asked from Sequence And Series (Marks 2.5)
Number in Brackets after Paper Indicates No. of Questions
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