Paul wrote five tests which were marked out of a total of 200 marks. Paul scored 40 out of 50 in a 6th test. What was his NEW average? HoW do I work out this type of sum.
To calculate the new average, you need to consider the total marks obtained and the total number of tests taken.
First, find the total marks obtained by Paul in the first five tests. Since each test was marked out of 200, the total marks for the first five tests would be 5 multiplied by 200, which equals 1000.
Then, add Paul's score on the 6th test, which is 40, to the total marks obtained in the first five tests. The new total marks would be 1000 + 40 = 1040.
Next, find the total number of tests taken. Since Paul wrote five tests initially and then took a 6th test, the total number of tests would be 5 + 1 = 6.
Finally, divide the new total marks (1040) by the total number of tests (6) to find the new average. 1040 divided by 6 equals 173.33 (rounded to two decimal places).
Therefore, Paul's new average is 173.33.
It would help if you proofread your questions before you posted them.
Data missing. "marked __ out of a total of 200 marks."
mean = ∑x/n