A) 16
B) 24
C) 35
D) 40
Correct Answer: D
Solution :
Numbers are in sets of three such that each set forms a Pythagorean triple, i.e, \[{{3}^{2}}+{{4}^{2}}={{5}^{2}},\,{{12}^{2}}\,={{13}^{2}},\,{{7}^{2}}+{{24}^{2}}\,={{25}^{2}}\] and so on. Quicker: 2nd number in each set is (1st number \[\times n+n\]) Method: Where, n = 1, 2, 3 ........ is set no. next number in the series is \[(9\times 4+4)=40\]
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