In a class of 25 students in an examination in maths 3 students scored 95 marks each, 5 get zero each and the average of the rest was 45. What is the average of the whole class?
Choose one:
A) A)47
B) B)45.6
C) C)42
D) D)48
E) E)49
Explanation:   Total marks obtained by a class of 25 students   = 3*95 + 5*0 + 17* 45= 
<gadget id="calculator">3*95 + 5*0 + 17* 45</gadget>
<output>1_050</output>
1050   Average marks of whole class= 1050/25= 
<gadget id="calculator">1050/25</gadget>
<output>42</output>
42   Answer: Option 42
<result>C</result>
In a class of 25 students in an examination in maths 3 students scored 95 marks each, 5 get zero each and the average of the rest was 45. What is the average of the whole class?