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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.


A

Total number of people in 0-20 age group is 10

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B

Total number of people in 0-20 age group is 5

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C

Maximum number of people are from age group of 21-30 years

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D

Total number of people staying in the hotel is 35

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Solution

The correct option is C

Maximum number of people are from age group of 21-30 years


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.
The class of 21-30 age group has the highest frequency.
Hence option C is correct.
On summing up all the frequencies, it can be seen that D is incorrect


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