Question 3 :
Can a polyhedra have $10$ faces, $20$ edges and $15$ vertices?
Question 6 :
Among the following options, the largest number exactly divisible by $5$?<br/>
Question 10 :
The value which will come in place of the question mark $(?)$ in the question $\sqrt{?}+\sqrt{961}=\sqrt{2025}$ is
Question 11 :
Find the value of $x$ such that $3x5$ is divisible by $3$.<br/>
Question 12 :
Using $(x + a) (x + b) = x^2 + (a + b) x + ab$, find: 103 × 104
Question 13 :
What will be the product of first monomial $-5y$ and second monomial $3x^2$ ?
Question 14 :
The curved surface area of a cylinder is $2\pi(y^2−7y+12)$ and its radius is (y – 3). Find the height of the cylinder.
Question 15 :
If two quantities x and y vary directly with each other, then
Question 16 :
44 cows can graze a field in 9 days. How many less/more cows will graze the same field in 12 days?
Question 18 :
If $2^x - {2^{x - 1}} = 4$ then $x^x$ is equals to 
Question 19 :
A swimming pool is in the form of a cylinder of radius $20$ m. The volume of water in the cylindrical pool is $\displaystyle 3140{ m }^{ 3 }$. Find its depth.
Question 20 :
State true or false:<br/>The radius of a solid right circular cylinder decreases by $20\%$ and its height increases by $10\%$. Find the percentage change in its volume<br/><br/>Answer: Decrease 29.6%<br/><br/><br/><br/>
Question 21 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ce9ff59b460d7261f067.PNG' />
The above graph shows the temperature of a patient in a hospital, recorded every hour. When was the patient’s temperature 38.5° C?
Question 22 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1ce9cf59b460d7261f063.PNG' />
From the above figure, find the coordinates of F.
Question 23 :
Water is pouring into a cubiodal reservoir at the rate of 60 litres per minute. If the volume of reservoir is $108 m^3$ , How many hours it will take to fill the reservoir?
Question 24 :
If each edge of a cube is doubled,how many times will its volume increase?
Question 27 :
State true or false: There are 2n natural numbers between the squares of numbers n and n+1.
Question 28 :
Number obtained when a number is multiplied by itself three times is called
Question 29 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cfb9f59b460d7261f1f6.png' />
From the above given image, answer the following: Identify the front view for the given object.
Question 30 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cf8cf59b460d7261f1b3.png' />
From the above given image, answer the following: Identify the corresponding side view for the above solid figure.