During a quality control conference if 30....?

Question: During a quality control conference if 30 employees are seated in column, then 50 column could be formed. However, if 25 employees are seated in a column then how many such columns could be formed?

(A)100 ❌

(B)75 ❌

(C)105 ❌

(D)60 ✔ 

Answer: 60

Reason: As mentioned in the question, during a quality control conference if 30 employees are seated in a column, then 50 columns can be formed. So in general his number of employees will be 30 * 50 = 1500. So according to this if 25 employees sit in a column then number of columns = 1500/25 = 60. 

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