The value of $$\sqrt {40 + \sqrt {9\sqrt {81} } }$$ is = ?
A. $$\sqrt {111} $$
B. 9
C. 7
D. 11
Answer: Option C
Solution(By Examveda Team)
$$\eqalign{ & \sqrt {40 + \sqrt {9\sqrt {81} } } \cr & \Rightarrow \sqrt {40 + \sqrt {9 \times 9} } \cr & \Rightarrow \sqrt {40 + 9} \cr & \Rightarrow \sqrt {49} \cr & \Rightarrow 7 \cr} $$This Question Belongs to Arithmetic Ability >> Surds And Indices
Related Questions on Surds and Indices
A. $$\frac{1}{2}$$
B. 1
C. 2
D. $$\frac{7}{2}$$
Given that 100.48 = x, 100.70 = y and xz = y2, then the value of z is close to:
A. 1.45
B. 1.88
C. 2.9
D. 3.7
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