Question

3. The marks of a student in written and oral tests in subjects AB
and C are as follows. The written test marks are out of 75 and the
oral test marks are out of 25. Find the weighted mean of the
marks in written test taking the marks in oral test as weight. The
marks of written test and oral test respectively as follows: 27 24.
43 and 5, 10, 15.
​

Answer 1

Answer:

your answer is 56/7 because I think it should be correct

Answer 2

Answer:

17.1025

Step-by-step explanation:

Formula of mean =sum of all obsevation upon no.of observation

first add 43,5,10,15

your addition answer is 73

then count your numbers you have four numbers after that devide 73 by 4 now your is here

17.1025