118
112
124
16
Correct answer is B
T α1R3 T = kR3 k = TR3 = 281 x 33 = 281 x 27 dividing 81 by 27 k = 22 therefore, T = 23 x 1R3 When R = 2 T = 23 x 123 = 23 x 18 = 112
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