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Kamlesh

· started a discussion

· 1 Months ago

Don't understand (Question: 121945.0 )

please explain.

Question:

A student’s marks were wrongly entered as 93 instead of 39. Due to that, the average marks for the class got increased by 1. Find the number of students in the class.

Options:
A) 27 
B) 36
C) 45
D) 54
E) 66
Solution:
Ans: (d) Let the number of students in the class be x 

Total increase in marks = x × 1 

Therefore, x = (93 - 39) =54

Knowledge Expert

· commented

· 1 Months ago

Let the number of students in the class be x
Total increase in marks = x × 1

Therefore, x = (93 - 39) =54
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