If you subtract $\frac{1}{2}$ from a number and multiply the result by $\frac{1}{2}$, you get $\frac{1}{8}$. The number is
$\frac{3}{4}$
Let the number be x. Then \frac12(x-\frac12)=\frac18, so x-\frac12=\frac14 and x=\frac34. The duplicate distractor has been replaced while the marked answer remains at the same index.
Replace the question mark (?) in the following number series with suitable option.
$3, 3, 4.5, 9, 22.5, ?$
Between which two consecutive integers does $\sqrt{290}$ lie?
Which is greater: √45 or √49 - 1?
Which among the following is not a prime number?