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Question
The average height of 21 girls was recorded as 148 cms. If the teacher's height was added, the average increased by one. What was the teacher's height?
Options:
A .  156 cms
B .  168 cms
C .  170 cms
D .  162 cms
E .  None of these
Answer: Option C


Height of the teacher = 148 + 22 = 170 cms



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