AMDM (Mathematics) Question

Question

A class of 43 students took a test. 12 students had an average score of 71. the other students had an average score of 89. what is the average score of the whole class?

Answer 1

AMDM (Mathematics) Question

A class of 43 students took a test. 12 students had an average score of 71. the other students had an average score of 89. what is the average score of the whole class?

Hello Sara,

[ 12*71 + (43 - 12)*89 ]/ 43 =

3611/43

Average = 84%