Question
the average score on a math test for 16 students was 66. six more students took the test. the average of the six was 74. What was the average of all of the students?
Answers
Reiny
The total of the first 16 students' marks was
16x66 or 1056
the total of the new students' marks was
6x74 or 444
so the total of the 22 students was 1500
giving an average of 1500/22 or appr 68.2
16x66 or 1056
the total of the new students' marks was
6x74 or 444
so the total of the 22 students was 1500
giving an average of 1500/22 or appr 68.2