Given below is the table of the marks of 10 students. For getting promoted to

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Given below is the table of the marks of 10 students. For getting promoted to section A, a student has to score more marks than the average. Can you tell me from the given options, which student will not be promoted to Section A?

$\begin{matrix} Name & Marks & Name & Marks Pavani & 79 & Ajit & 77 Goutham & 81 & Kushagra & 73 Deepthi & 68 & Manish & 94 Pavan & 85 & Satyam & 81 Akash & 62 & Sarosh & 80 \end{matrix}$

Options:

A . Pavani

B . Sarosh

C . Deepthi

D . Goutham

Answer: Option C
:
C

We know that,
$A v e r a g e = \frac{S u m o f a l l o b s e r v a t i o n s}{T o t a l n u m b e r o f o b s e r v a t i o n s}$ 
Average marks= $\frac{79 + 81 + 68 + 85 + 62 + 77 + 73 + 94 + 81 + 80}{10}$ = $\frac{780}{10}$ =78.

Students who scored less marks than the average, won't be promoted to section A. So, from the given options, only Deepthi has lesser marks than 78.

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