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Directions for question:

The result of a survey conducted by the Municipal Corporation of Kolkata about the professions pursued by the resident adult population in Borough XIV, Ward 128, of Kolkata yielded the following result expressed as a pie-chart :

On further detailed survey on the mother-tongue of the residents, it was revealed that out of the doctors, the count of mother-tongue when expressed in a pie-chart was as follows :


It was found that only 9 Doctors had Assamese as their mother tongue.

Question:

By dint of the survey it was found that 11% of all the residents in Borough IV, Ward 128 in Kolkata were having their mother-tongue as Hindi. What could be the largest possible fraction of the Sales professionals in Borough IV, Ward 128 in Kolkata whose mother tongue was Hindi ?

 

Option: 1

37/55

 


Option: 2

-


Option: 3

-


Option: 4

-


Answers (1)

best_answer

From the first question,

The number of Doctors in Borough IV, Ward 128 in Kolkata = 180

Thus 18% of the adult population = 180

So 100% of the adult population = (180/18)*100 = 1000

From the first pie-chart,

The percentage of the adult population who were Sales professionals = 14%

Thus, the number of Sales professionals in Borough IV, Ward 128 in Kolkata = (14/100)*1000 = 140

The total number of adult population in Borough IV, Ward 128 in Kolkata who were having their mother-tongue as Hindi

= (11/100)*1000

= 110

Out of the above, the number of Doctors with mother-tongue as Hindi were = (20/100)*180 = 36

It can be possible that nobody in the other professions except Sales had a mother-tongue as Hindi.

Thus the maximum possible Sales professionals with mother-tongue as Hindi = 110 – 36 = 74

Hence, the largest possible fraction of the Sales professionals in Borough IV, Ward 128 in Kolkata whose mother tongue was Hindi

= 74 : 110

= 74/110

= 37/55

 

Posted by

vishal kumar

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