Jn a school the periodical examinations are held every second month. In a session during Apr. 2001 - Mar. 2002, a student of Class IX appeared for each of the periodical exams. The aggregate marks obtained by him in each periodical exam are represented in the line-graph given below. Study the graph and answer the questions based on it.

 

MARKS OBTAINED BY A STUDENT IN SIX PERIODICAL EXAMS HELD IN EVERY TWO MONTHS DURING THE YEAR IN THE SESSION 2001-02

linegraph-ex1.jpg

1)

What is the percentage of marks obtained by the student in the periodical exams of Aug. 01 and Oct. 01 taken together?


A) 73.25%

B) 75.5%

C) 77%78.75%

D) 79.5%

Answer:

Option B

Explanation:

Required percentage = (  ( 370 + 385 ) / ( 500 + 500 ) ) X 100 % =  ( 755/1000 ) X 100 %= 75.5%