Average height of $15$ students of class $6$ is $140 c m$ and average height of $10$ students of class $7$ is $145 c m$ . What is the average height of the student of both the classes?

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Solution

Total height of class 6 students = 140 × 15 = 2100 cm
Total height of class 7 students = 145 × 10 = 1450 cm
Average height of both classes = Combined height of students of both classes / Total number of combined students
= (2100 + 1450) / (15 + 10)
= 3550 / 25
= 142 cm is average height

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Average height of 15 students of class 6 is 140 cm and average height of 10 students of class 7 is 145 cm. What is the average height of the student of both the classes?

Total height of class 6 students = 140 × 15 = 2100 cmTotal height of class 7 students = 145 × 10 = 1450 cmAverage height of both classes = Combined height of students of both classes / Total number of combined students= (2100 + 1450) / (15 + 10)= 3550 / 25= 142 cm is average height

Average height of $15$ students of class $6$ is $140 c m$ and average height of $10$ students of class $7$ is $145 c m$ . What is the average height of the student of both the classes?

Total height of class 6 students = 140 × 15 = 2100 cm
Total height of class 7 students = 145 × 10 = 1450 cm
Average height of both classes = Combined height of students of both classes / Total number of combined students
= (2100 + 1450) / (15 + 10)
= 3550 / 25
= 142 cm is average height