The mean mark obtained by 25 student in a class is 35 and that of 35 students is 25 find the mean mark obtained by all student
Answers
Answered by
18
Hi friend
----------------
Your answer
--------------------
Mean mark obtained by 25 students = 35
Sum of the marks of 25 students = (35 × 25) = 875
Mean mark obtained by 35 students = 25
Sum of maths obtained by 35 students = (35 × 25) = 875
Mean of marks obtained by all the students = (875 + 875)/(25 + 35)
=> 1750/60
=> 29.16
HOPE IT HELPS
----------------
Your answer
--------------------
Mean mark obtained by 25 students = 35
Sum of the marks of 25 students = (35 × 25) = 875
Mean mark obtained by 35 students = 25
Sum of maths obtained by 35 students = (35 × 25) = 875
Mean of marks obtained by all the students = (875 + 875)/(25 + 35)
=> 1750/60
=> 29.16
HOPE IT HELPS
Answered by
1
Answer:
Step-by-step explanation:
Similar questions