Question
Select the option in which the numbers are not related
in the same way as the numbers of the following set. (121, 144, 169)Solution
The logic followed here is as follows: Each number in the given triplets is the square of three consecutive natural numbers. For (11², 12², 13²) = (121, 144, 169) For option 'a': (19², 20², 21²) = (361, 400, 441) For option 'b': (3², 4², 5²) = (9, 16, 25) For option 'c': (17², 18², 19²) = (289, 324, 361) For option 'd': (7², 8², 9²) = (49, 64, 81) In option 'd', the third number given is 121 (11²), which is not the square of the consecutive number 9.
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