Question

(b)
B
C С
1
Exams
Class IX
Class X
2
Ist Term
Class XI
40
50
Real
2nd Term
3
50
50
40
45
4
Half Yearly
60
60
70
5
Final
72
75
70
The above table shows no. of students of 3 classes of a particular school
who passed 4 exams conducted in a complete session. Based on these data
write the formula to calculate the following:
(1)
Find the total no. of students who passed in the 1st term in all 3 classes.
(ii)
Find the total no. of students who passed in classes IX and X in half
yearly
(iii) Average no. of students who passed in the final term in all three classes.
(iv) Average no. of students who passed in class XI in all four exams.​

Answer 1

Answer:

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Answer 2

Answer:

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Explanation:

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