The Table below presents the percentage marks obtained by three students A, Y, Z in the
four components of assessment, A, B, C, D of a paper whose respective weightages are 4, 3, 2,
2, 1.
Students/Marks A B C D
X 78 85 72 76
Y 65 68 64 73
Z 82 76 81 75
What is the ratio of the average percentage of X in A, B to that of Y, Z combined in C, D?
Answers
Answered by
3
Given :-
Students/Marks A B C D
X 78 85 72 76
Y 65 68 64 73
Z 82 76 81 75
To Find :- What is the ratio of the average percentage of X in A, B to that of Y, Z combined in C, D ?
Answer :-
→ Average % of X in A + B = (78 + 85) / 2 = 81.5% .
→ Average % of (Y + Z) in (C + D) = (64 + 73 + 81 + 75)/2 = 146.5% .
then,
→ Required Ratio = 81.5 : 146.5 = 815 : 1465 = 163 : 293 .
Learn more :-
the average age of 30 students is 9 years if the age of their teacher is included it becomes 10 years ago the age of the...
https://brainly.in/question/15081594
Answered by
2
Answer:
d) 81:73
Step-by-step explanation:
LOST 5 MARKS ON MY EXAM TO FIND THE CRT ANS
Similar questions