Question

plz solve this questions with solutions if the answer will correct and helpful i will add it to the brainlist answer

Answer 1

the answer is 212.5

steps

we are suppose to find average of the height of the students in both classes . so the average of class 6 = 140

average height of class 7 = 145

average of both classes = sum of both numbers divided by the number of terms . ( formula of finding average )

140+145/2 = 285/ 2 = 212.5