Question
The graph below shows the number of people of different age groups staying in a hotel. Find the correct statement(s) among the options. 
Answer: Option A
:
A and C
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A and C
The number of people in a class is proportional to area.
Therefore, the class of 0-20 is twice the size of other classes.
So, total frequency of 0-20 class is 5×2=10
Hence option A is correct and B is incorrect.Â
The class of 21-30 age group has the highest frequency.Â
Hence option C is correct.
On summing up all the frequencies, it can be seen that D is incorrect
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