1
4
3
2
Correct answer is D
(K2)6 * 36 = 35(K4)5
(K*61 + 2*60) 3*60 = 3*50(K*51 + 4*50)
3(6K + 2) = 3(5K + 4)
6K + 2 = 5K + 4
6K - 5K = 4 - 2
K = 2
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