There are 20 students with an average height of 105 cms in a class.

Ask n AnswerCategory: ArithmeticThere are 20 students with an average height of 105 cms in a class.
Vinuthan S Staff asked 1 year ago
There are 20 students with an average height of 105 cms in a class. Then 10 students with an average height of 120 cms join the class. What will be the average height of the class now?

A. 100 cms

B. 110 cms

C. 120 cms

D. 130 cms

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