How many students are there in Class IX in the school?
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.
How many students are there in Class IX in the school?
336
189
335
430
Correct answer is D
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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