Aptitude : : Square root and Cube root Questions & Answers
- The value of $ \sqrt{0.01}+\sqrt{0.81}+\sqrt{1.21}+\sqrt{0.0009} $ is :
A. 2.03
B. 2.13
C. 2.1
D. 2.11
- What number should be divided by $\sqrt{0.25}$ to give the result as 25?
A. 12.5
B. 25
C. 50
D. 125
- If $ \dfrac{5+2\sqrt{3}}{7+4\sqrt{3}}=a+b\sqrt{3} $, then :
A. a = -11 and b = -6
B. a = -11 and b = 6
C. a = 11 and b = -6
D. a = 11 and b = 6
- For what value of $*$ the statement $\left(\dfrac{*}{15}\right)\left(\dfrac{*}{135}\right) =1 $ is true
A. 15
B. 25
C. 35
D. 45
- If $ \sqrt{5}=2.236 $, then the value of $ \dfrac{\sqrt{5}}{2} - \dfrac{10}{\sqrt{5}} +\sqrt{125} $ is equal to :
A. 5.59
B. 7.826
C. 8.944
D. 10.062