Question 2 :
If {tex} \mathrm { x } , \mathrm { y } {/tex} are both positive rational numbers, then {tex} ( √ x + √ y ) (√ x - √ y ) {/tex} is
Question 3 :
What is the Multiplicative Inverse of 10 <sup> 10 </sup> ?
Question 4 :
What is the value of n in 5 <sup> -5 </sup> x 5 <sup> 2n+1 </sup> = 5 <sup> 13 </sup> ÷ 5 <sup> 7 </sup> ?
Question 7 :
The point which lies ony-axis at a distance of 5 units in the negative direction of y- axis is
Question 9 :
The distance of the point P (2, 3) from the x-axis is
Question 10 :
The perimeter of the shaded region shown in figure below is:<br /><img style='object-fit:contain' class="uploaded-image" src="https://storage.googleapis.com/teachmint/question_assets/ICSE%20-%20Class%209/5f7d79d9db6c68426fc8ef8e" /width=170>
Question 11 :
If the volume of a cube is 729 m<sup>3</sup>, then its surface area is
Question 12 :
If the perimeter of one face of a cube is 40 cm, then the sum of lengths of its edge is
Question 13 :
The number of planks of dimensions (4 m x 50 cm x 20 cm) that can be stored in a pit which is 16 m long, 12 m wide and 4 m deep is
Question 14 :
The lateral surface area of a cube is 256 m<sup>2</sup>. The volume of the cube is
Question 15 :
In the given figure, OACB is a quadrant of a circle of radius 7 cm. The perimeter of the quadrant is <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/ICSE%20-%20Class%209/5f7c3767001ce34bec8e2f00">
Question 16 :
A cuboid container has the capacity to hold 50 small boxes. If all the dimensions of the container are doubled, then it can hold (small boxes of same size)
Question 17 :
The perimeter of the shaded region is:<br /><img style='object-fit:contain' class="uploaded-image" src="https://storage.googleapis.com/teachmint/question_assets/ICSE%20-%20Class%209/5f7d7a82fb4627429f3a8ccc" />
Question 18 :
If the lengths of diagonals of a rhombus is doubled, then area of rhombus will be
Question 19 :
The given figure shows a rectangle and a semicircle. The perimeter of the shaded region is<br /><img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/ICSE%20-%20Class%209/5f7c3768006e1e13a9a96fde">
Question 20 :
The width of each of 5 continuous classes in a frequency distribution is 5 and the lower limit of the lowest class is {tex} 10 . {/tex} The upper limit of the highest class is
Question 21 :
For drawing a frequency polygon of a continuous frequency distribution, we plot the points whose ordinates are the frequencies of the respective classes and abscissae are respectively:
Question 22 :
In the class intervals {tex} 10 - 20,20 - 30 , {/tex} the number {tex}20{/tex} is included in
Question 23 :
The class mark of the class {tex} 90 - 120 {/tex} is
Question 24 :
The mean of 100 observations is {tex} 50 . {/tex} If one of the observation which was {tex}50{/tex} is replaced by {tex} 150 , {/tex} the resulting mean will be
Question 25 :
In a frequency distribution, the mid-value of a class is 10 and the width of the class is {tex} 6 . {/tex} The lower limit of the class is
Question 26 :
AD is a diameter of a circle and AB is a chord. If AD = 34 cm and AB = 30 cm, then the distance of AB from the centre of circle is
Question 27 :
If the diagonals of a quadrilateral PQRS bisect each other at right angles, then the quadrilateral PQRS must be a