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Table Charts - General Aptitude

Study the following table and answer the questions.

Classification of 100 Students Based on the Marks Obtained by them in Physics and Chemistry in an Examination.

Subject Marks out of 50
40 and above 30 and above 20 and above 10 and above 0 and above
Physics9328092100
Chemistry4216681100
Average (Aggregate)7277387100
Q1:

The number of students scoring less than 40% marks in aggregate is?

A 13

B 19

C 20

D 27

ANS:D - 27

We have 40% of 50 = ( 40 x 50 ) = 20.
100
Therefore Required number       = Number of students scoring less than 20 marks in aggreagate       = 100 - Number of students scoring 20 and above marks in aggregate       = 100 - 73       = 27.