Question

Average height of the 15 students of the class six is 140 cm and a great height of the tennis students of class seventh is 145 cm what is the average height of the students of both the classes

Answer 1

‍‍‍‍‍‍class 6 :- 50x140 = 7000cm

‍‍‍‍class 7:- 10x145 =1450 cm

Overall height :-7000+1450 = 8450cm  

8450/60 = 140.83 cm

average height of each student is ©©140.83 cm

Answer 2

Step-by-step explanation:

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