Aptitude : : Surds and Indices Questions & Answers
- The value of $(256)^\dfrac{5}{4}$
A. 512
B. 984
C. 1024
D. 1032
- The value of $ {(\sqrt{8})}^{\dfrac{1}{3}} $
A. 2
B. 4
C. √2
D. 8
- The value of $ {\left(\dfrac{32}{243}\right)^\dfrac{-4}{5}} $
A. $\dfrac{4}{9}$
B. $\dfrac{9}{4}$
C. $\dfrac{16}{81}$
D. $\dfrac{81}{16}$
- 49 x 49 x 49 x 49 = 7?
A. 7
B. 8
C. 16
D. 6
- If $ \left( \dfrac{a}{b} \right)^{\text{x}-1} =\left( \dfrac{b}{a}\right )^{\text{x}-3} $, then the value of $\text{x}$ is :
A. $\dfrac{1}{2}$
B. 1
C. 2
D. $\dfrac{7}{2}$