RRB GROUP D QUANT QUIZ

$52÷[36-\{24-(32-54÷9\times 3)\}]=?$

12 women can complete a work in 64 day, then find how many women will be required to complete 2/3 rd of the same work in 16 days?

The value of ${\sec }^2{12}^{\circ }-\frac{1}{{\tan }^2{78}^{\circ }}$ is:

A train travels $600\mathrm{km}$ in 5 hours and the next $900\mathrm{km}$ in 10 hours. What is the average speed of the train?

If the roots $\alpha$ and $\beta$ of the equation $a{x}^2+2bx+c=0$ then find the value $\sqrt{\frac{\alpha }{\beta }}+\sqrt{\frac{\beta }{\alpha }}$

In a recent survey $40\mathrm{\%}$ houses contained 2 or more people. Of those houses containing only one person, $25\mathrm{\%}$ were having only a male. What is the percentage off all houses which contain exactly one female and no males (Assume that each house contains at least 1 person)

In $\mathrm{△}\mathrm{PQR},\mathrm{\angle }\mathrm{P}$ is ${50}^{\circ }$ and $\mathrm{\angle }\mathrm{Q}$ is ${20}^{\circ }$ more than $\mathrm{\angle }\mathrm{R}$ then find the measure of $\mathrm{\angle }Q$.

Find the distance between the points $(7\mathrm{k}+$ $2,5-3\mathrm{k})$ and $(-3+7\mathrm{k},-7-3\mathrm{k})$

The diameter of a roller is $84\mathrm{cm}$ and its length is $120\mathrm{cm}$. It takes 500 complete revolutions to move once over to level a playground. Find the area of the playground in $m^2$ ? [Assume $\pi =\frac{22}{7}$ ]

A sphere of radius $10\mathrm{cm}$ is melted and made into a cone of height $10\mathrm{cm}$. Find the diameter of the cone.