A 9(2/3)
B 11(1/3)
C 12(2/5)
D 13(2/3)
Correct Answer: Option D
642/3+ 6251/2 = 3k⇒ (43)2/3+ (252)1/2 = 3k⇒ 42+ 25 = 3k⇒ 16 + 25 = 3k⇒ 41 = 3k⇒ k = 41/3∴ k = 13(⅔)
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