A student average score in 4 subjects is 70. If the student got 75 marks in 5th subject then find the new average of his total marks.
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A student average score in 4 subjects is 70. If the student got 75 marks in 5th subject then find the new average of his total marks.
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Answer:
Total marks of 4 subjects =4*70
=280
Total marks of 5 subjects = 280+75=355
Average =355/5=71 ans
Step-by-step explanation:
The new average of his total marks is 71
Given:
A student average score in 4 subjects is 70.
The student got 75 marks in 5th subject.
To find:
The new average of his total marks.
Solution:
A student average score in 4 subjects is 70.
Therefore,
Sum of marks in four subjects is 70 × 4 = 280
The student got 75 marks in 5th subject.
Sum of marks in five subjects is 280 + 75 = 355
New average = Total marks / Number of subjects
New average = [tex]\frac{355}{5}[/tex]
New average = 71
The new average of the student is 71