PRACTICE QUESTIONS CLASSROOM WING

In the formula, $\mathrm{T}=2\mathrm{\pi }\sqrt{\frac{\mathrm{l}}{\mathrm{g}}}, \mathrm{T}$ is _____ proportional to $\sqrt{\mathrm{l}}$.

The perimeter of a polygon is the total length of its sides. In a regular polygon of $n$ sides with $x$ as the length of a side, the perimeter $P$ is _____.

The hundredth part of the product of the principal $\left(P\right)$, time $\left(T\right)$ and rate $\left(R\right)$ is Simple Interest $\left(I\right)$, then $I$ is _____

If the curved surface area of a closed cylinder is $2\mathrm{\pi }rh$ and base area $\mathrm{\pi }{r}^2$, then total surface area of that cylinder $A$ is ____.

If $16$ times the area of a square $\left(A\right)$ is equal to the perimeter $\left(P\right)$ of the square, then $A$ is _____.

Three children have pocket money of $₹x, ₹y$ and $₹z$. The average of their pocket allowances is $₹15$. Then $x+y+z=₹$______.

The ratio of $T$ to $\sqrt{l}$ is $\frac{2\mathrm{\pi }}{\sqrt{g}}$, then $\sqrt{l}$ is _____.

The diagonal of a rectangle is $10$ units. The formula to find the diagonal is $d=\sqrt{l^2+b^2}$, where $l$ and $b$ are length and breadth, respectively. If the value of $(10+b)(10-b)$ is $l^k$, then $k=$ _____.