The average marks scored by a student in a test of 6 subjects is 18. The sum of
the marks scored by him in 5 subjects is 86. Then the marks scored by him in
the sixth subject is
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Answer:
The marks scored by him in the sixth subject = 22 marks
Step-by-step explanation:
GIVEN:-
The average marks scored by a student in a test of 6 subjects is 18
The sum of the marks scored by him in 5 subjects is 86.
SOLUTION:-
LET THE SIXTH SUBJECT BE ' X '
AVERAGE = SUM OF ALL VALUES / NUMBER OF VALUES
18 = 86 + X / 6
18 * 6 = 86 + X
108 = 86 + X
108 - 86 = X
X = 22
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