Q$4)$ Assertion: If one root of the quadratic equation $62-x-k=0$ is $\frac{2}{3},$ then the value of $k$ is $2.$ Reason: The quadratic equation $a2+bx+c=0,a0$ has almost two roots. Directions: $($a$)$ If both Assertion and Reason are correct and Reason is the correct explanation of Assertion. $($b$)$ If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion. $($c$)$ If Assertion is correct but Reason is incorrect. $($d$)$ If Assertion is incorrect but Reason is correct. Q$5)$ Find the roots of the quadratic equation $2x^{1}2-x+\frac{1}{8}=0$ Q$6)$ Find two numbers whose sum is $27$ and product is $182.$ Q$7)$ Solve : $\sqrt[\phantom{2}]{?}2x^2+7x+5\sqrt[\phantom{2}]{2}=0$ using quadratic formula as well as splitting middle term. Q$8)$ A train travels $360km$