যদি (64)\(\frac{2}{3}\) + (625)\(\frac{1}{2}\) = 3K হয়, তবে K এর মান -   

A 9(2/3)

B 11(1/3)

C 12(2/5)

D 13(2/3)

Solution

Correct Answer: Option D

    (64)\(\frac{2}{3}\) + (625)\(\frac{1}{2}\) = 3K 

   or, (4)\(\frac{2}{3}\) + (25)\(\frac{1}{2}\) = 3k   

   or, 16 + 25 = 3K 

    K = \(\frac{{41}}{3} = 13\frac{2}{3}\)

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