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Number Analogy (Prasar Bharti)
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Directions: In the following question, there is a certain relationship between two given numbers on one side of (: :) and one number is given on the other side of (: :) while another number is to be found from the given alternatives having the same relationship with this number as the numbers of the given pair bear. Choose the best alternative.
36 : 125 : : 25 : ?
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A
64
💡 Explanation:
This is the correct answer as it follows the correct relationship xy : (x - 1)y + 1, i.e. 62 = 36, (6 - 1)2 + 1 = 125. So, if x = 5 and y = 2, then xy = 52 = 25 and (x - 1)2 + 1 = (5 - 1)2 + 1.