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NDA 2022
Exam
NDA
Year
2022
Subject
Mathematics
Chapter
Sequences and Series

NDA 2022 · Mathematics · Sequences and Series

The marks obtained by 51 students in a class are in AP with its...

The marks obtained by 51 students in a class are in AP with its first term 4 and common difference 3. What is the sum of the deviations measured from the median?

Options

  1. A-1
  2. B0
  3. C1
  4. D2

Correct answer

B. 0

Step-by-step solution

Sum of deviations measured from themedianthe median=Sn−n× Median =51×79−51×79=0\begin{aligned} & =\mathrm{S}_{\mathrm{n}}-\mathrm{n} \times \text{ Median } \\ & =51 \times 79-51 \times 79=0\end{aligned}$$
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