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In a school the periodical examination are held every second month. In a session during April 2001 - March 2002, a student of Class IX appeared for each of the periodical exams. The aggregate marks obtained by him in each perodical exam are represented in the line-graph given below.

Marks Obtained by student in Six Periodical Held in Every Two Months During the Year in the Session 2001 - 2002.

Maximum Total Marks in each Periodical Exam = 500

1. 

In which periodical exams did the student obtain the highest percentage increase in marks over the previous periodical exams ?
A. June, 01
B.

August, 01
C.

Oct, 01
D.

Dec, 01
2. 

The total number of marks obtained in Feb. 02 is what percent of the total marks obtained in April 01 ?
A. 110%
B.

112.5%
C.

115%
D.

116.5%
3. 

What is the percentage of marks obtained by the student in the periodical exams of August, 01 and Oct, 01 taken together ?
A. 73.25%
B.

75.5%
C.

77%
D.

78.75%
4. 

What are the average marks obtained by the student in all the periodical exams during the last session ?
A. 373
B.

379
C.

381
D.

385
5. 

In which periodical exams there is a fall in percentage of marks as compared to the previous periodical exams ?
A. None
B.

जून , 01
C.

जून , 01
D.

फरवरी , 02