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Table Charts

A school has four sections A, B, C, D of Class IX students.

The results of half yearly and annual examinations are shown in the table given below.

Result No. of Students
Section A Section B Section C Section D
Students failed in both Exams28231727
Students failed in half-yearly
but passed in Annual Exams		1412813
Students passed in half-yearly
but failed in Annual Exams		617915
Students passed in both Exams64554676
Q1:

How many students are there in Class IX in the school?

A 336

B 189

C 335

D 430

ANS:D - 430

Since the classification of the students on the basis of their results and sections form independent groups, so the total number of students in the class: = (28 + 23 + 17 + 27 + 14 + 12 + 8 + 13 + 6 + 17 + 9 + 15 + 64 + 55 + 46 + 76) = 430.



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