Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

In a ΔABC, E and F are the mid-points of AC and AB respectively. The altitude AP to BC intersects FE at Q. Prove that AQ = QP.

Answer»

In a ΔABC, E and F are the mid-points of AC and AB respectively. The altitude AP to BC intersects FE at Q. Prove that AQ = QP.

2.

In a quadrilateral ABCD, bisectors of A and B intersect at O such that ∠AOB=75∘, then write the value ∠C+∠D.

Answer»

In a quadrilateral ABCD, bisectors of A and B intersect at O such that AOB=75, then write the value C+D.

3.

A solid cylinder has total surface area of 462 cm2. Its curved surface area is one-third of its total surface area. Find the radius and height of the cylinder.

Answer»

A solid cylinder has total surface area of 462 cm2. Its curved surface area is one-third of its total surface area. Find the radius and height of the cylinder.

4.

In the figure, O is the centre of the circle. Find ∠CBD.

Answer»

In the figure, O is the centre of the circle. Find CBD.

5.

Prove that the angle in a segment greater than a semi-circle is less than a right angle.

Answer»

Prove that the angle in a segment greater than a semi-circle is less than a right angle.

6.

The cost of cutting grass in a field is Rs5/cm2.The field is in the shape of a rhombus and one of its side and diagonal is 8cm and 10 cm each.Find the total cost of cutting the grass. [4 MARKS]

Answer»

The cost of cutting grass in a field is Rs5/cm2.The field is in the shape of a rhombus and one of its side and diagonal is 8cm and 10 cm each.Find the total cost of cutting the grass. [4 MARKS]

7.

Bisector AD of ∠BAC of ΔABC passes through the centre O of the circumcircle of ΔABC. Prove that AB = AC. [2 MARKS]

Answer»

Bisector AD of BAC of ΔABC passes through the centre O of the circumcircle of ΔABC. Prove that AB = AC. [2 MARKS]

8.

The degree of the polynomial 4x4+0x3+0x5+5x+7 is A) 4 B) 5 C) 3 D) 7

Answer»

The degree of the polynomial 4x4+0x3+0x5+5x+7 is

A) 4
B) 5
C) 3
D) 7

9.

Assertion: The point (-5,0) lies on y-axis and (0,-4) on x-axis. Reason: Every point on the x-axis and every point on the y-axis has zero distance from y-axis. Which of the following is correct?

Answer»

Assertion: The point (-5,0) lies on y-axis and (0,-4) on x-axis.
Reason: Every point on the x-axis and every point on the y-axis has zero distance from y-axis.
Which of the following is correct?


10.

Question 13 Prove that the quadrilateral formed by the bisectors of the angles of a parallelogram is a rectangle.

Answer» Question 13
Prove that the quadrilateral formed by the bisectors of the angles of a parallelogram is a rectangle.

11.

Question 65 (ii) How many vertices does the following solid have? Cylinder

Answer» Question 65 (ii)

How many vertices does the following solid have?

Cylinder
12.

If the volume of a sphere is equal to the volume of the hemisphere, then the ratio of the radius of the sphere to the radius of the hemisphere is .

Answer»

If the volume of a sphere is equal to the volume of the hemisphere, then the ratio of the radius of the sphere to the radius of the hemisphere is .

13.

Which of the following is a pair of supplementary angles?

Answer»

Which of the following is a pair of supplementary angles?


14.

how many years it would take to spend Avogadro's number of Rupees with the rate of 10 lakh rupees per second?

Answer»

how many years it would take to spend Avogadro's number of Rupees with the rate of 10 lakh rupees per second?

15.

In the following figure, ABC and BDE are two equilateral triangles such that D is the mid-point of BC. If AE intersects BC at F, Show that ar(BDE)=12ar(BAE)

Answer» In the following figure, ABC and BDE are two equilateral triangles such that D is the mid-point of BC. If AE intersects BC at F,
Show that
ar(BDE)=12ar(BAE)




16.

Question 4 (i) In the given figure, P is a point in the interior of a parallelogram ABCD. Show that (i)ar(APB)+ar(PCD)=12ar(ABCD)

Answer» Question 4 (i)
I
n the given figure, P is a point in the interior of a parallelogram ABCD. Show that
(i)ar(APB)+ar(PCD)=12ar(ABCD)
17.

The following observations have been arranged in a scending order. If the median of the data is 63, find the value of x. 29,32,48,50, x, x +2, 72, 78,84, 95 [2 MARKS]

Answer» The following observations have been arranged in a scending order. If the median of the data is 63, find the value of x.
29,32,48,50, x, x +2, 72, 78,84, 95 [2 MARKS]
18.

Choose the correct answer in each of the following questions: If ¯x is the mean of x1,x2,xy,…xn then ∑ni=1(xi−¯x)=? (a) -1 (b) 0 (c) 1 (d) n-1

Answer»

Choose the correct answer in each of the following questions:
If ¯x is the mean of x1,x2,xy,xn then ni=1(xi¯x)=?
(a) -1
(b) 0
(c) 1
(d) n-1

19.

The simplest form of 0.3¯¯¯2 is (a)1645 (b)3299 (c)2990 (d) none of these

Answer»

The simplest form of 0.3¯¯¯2 is

(a)1645

(b)3299

(c)2990

(d) none of these

20.

Two cones have their heights in the ratio 1 : 3 and the radii of their bases in the ratio 3:1.Show that their volumes are in the ratio 3 : 1.

Answer»

Two cones have their heights in the ratio 1 : 3 and the radii of their bases in the ratio 3:1.Show that their volumes are in the ratio 3 : 1.

21.

In the given figure, if the value of sinθ is ab, find the value of tanθ.

Answer»

In the given figure, if the value of sinθ is ab, find the value of tanθ.

22.

If one angle of a triangle is equal to the sum of the other two,show that the triangle is a right triangle.

Answer»

If one angle of a triangle is equal to the sum of the other two,show that the triangle is a right triangle.

23.

Factorise x9−y9

Answer»

Factorise
x9y9

24.

An irrational number between 17 27 is (a)12(17+27) (b)(17×27) (c)√17×27 (d)none of these

Answer»

An irrational number between 17 27 is

(a)12(17+27)

(b)(17×27)

(c)17×27

(d)none of these

25.

Question 2 (ii) ABCD is a quadrilateral in which AD=BC and ∠DAB=∠CBA (See the given figure). Prove that BD = AC

Answer» Question 2 (ii)
ABCD is a quadrilateral in which AD=BC and DAB=CBA (See the given figure). Prove that
BD = AC
26.

If the measures of the internal angles of a quadrilateral are in the ratio 2:4:5:7, then what is the difference between the measures of the greatest and the least angle?

Answer»

If the measures of the internal angles of a quadrilateral are in the ratio 2:4:5:7, then what is the difference between the measures of the greatest and the least angle?


27.

Using the remainder theorem, find the remainder, when p(x) is divided by g(x), where (px)=6x3+13x2+3,g(x)=3x+2

Answer»

Using the remainder theorem, find the remainder, when p(x) is divided by g(x), where
(px)=6x3+13x2+3,g(x)=3x+2

28.

What is definition of line?

Answer»

What is definition of line?

29.

The vectors b and c are in the direction of north-east and north-west respectively and |b|=|c|=4. The magnitude and direction of the vector d = c - b, are

Answer»

The vectors b and c are in the direction of north-east and north-west respectively and |b|=|c|=4. The magnitude and direction of the vector d = c - b, are


30.

What is the sum of the measures of the angles of a convex quadrilateral? Will this property hold if the quadrilateral is not convex? (Make a non-convex quadrilateral and try!)

Answer»

What is the sum of the measures of the angles of a convex quadrilateral? Will this property hold if the quadrilateral is not convex? (Make a non-convex quadrilateral and try!)

31.

Prove that the points, (3,0) (6,4) (-1,3) are vertices of a right angled isosceles triangle.

Answer» Prove that the points, (3,0) (6,4) (-1,3) are vertices of a right angled isosceles triangle.
32.

s=ut+12at2 , make “a” as subject of the formula and find the coefficient of 1t.

Answer»

s=ut+12at2 , make “a” as subject of the formula and find the coefficient of 1t.


33.

If a sheet measuring 1m2 costs Rs 15. The cost of sheet required for making a cuboidal box of dimension 5 m × 6.5m × 6 m is

Answer»

If a sheet measuring 1m2 costs Rs 15. The cost of sheet required for making a cuboidal box of dimension 5 m × 6.5m × 6 m is


34.

In the given figure, LM = LN and ∠PLN=110∘. Find ∠LMN.

Answer» In the given figure, LM = LN and PLN=110. Find LMN.
35.

What do you call a circle of diameter 2 units? __

Answer»

What do you call a circle of diameter 2 units?


__
36.

Question 7 (i) ABC is a triangle right angled at C. A line through the mid-point M of hypotenuse AB and parallel to BC intersects AC at D. Show that D is the mid-point of AC.

Answer» Question 7 (i)
ABC is a triangle right angled at C. A line through the mid-point M of hypotenuse AB and parallel to BC intersects AC at D. Show that
D is the mid-point of AC.
37.

How many circles can be drawn circumscribing a given triangle?

Answer»

How many circles can be drawn circumscribing a given triangle?


38.

Express 0.8+0.¯¯¯7+0.4¯¯¯3 in the form pq, where p and q are integers and q≠0.

Answer»

Express 0.8+0.¯¯¯7+0.4¯¯¯3 in the form pq, where p and q are integers and q0.

39.

Given that y = -6x + 1 and -3 < x < 23. Then y lies in which of the following intervals.

Answer»

Given that y = -6x + 1 and -3 < x < 23. Then y lies in which of the following intervals.


40.

A solid iron cuboidal block of dimensions 4.4 m×2.6 m×1 m is recasted into a hollow cylindrical pipe of internal radius 30 cm and thickness 5 cm. The length of the pipe is ________.

Answer»

A solid iron cuboidal block of dimensions 4.4 m×2.6 m×1 m is recasted into a hollow cylindrical pipe of internal radius 30 cm and thickness 5 cm. The length of the pipe is ________.


41.

Is 3x=y+7 have infinite many solutions why?

Answer»

Is 3x=y+7 have infinite many solutions why?

42.

The sides of a rectangle are in the ratio 7:3. If its area is 7581 m2, find its perimeter.

Answer»

The sides of a rectangle are in the ratio 7:3. If its area is 7581 m2, find its perimeter.


43.

In a triangle, the sides are given as 11 cm, 12 cm and 13 cm. Find the length of the altitude corresponding to the side having 12 cm.

Answer»

In a triangle, the sides are given as 11 cm, 12 cm and 13 cm. Find the length of the altitude corresponding to the side having 12 cm.

44.

Question 2 Construct a triangle of sides 4 cm, 5 cm and 6 cm and then a triangle similar to it whose sides are 23 of the corresponding sides of the first triangle.

Answer» Question 2
Construct a triangle of sides 4 cm, 5 cm and 6 cm and then a triangle similar to it whose sides are 23 of the corresponding sides of the first triangle.
45.

A 2 m wide path is built along the border and inside a square garden of side 11 m. The area of the path is_____.

Answer»

A 2 m wide path is built along the border and inside a square garden of side 11 m. The area of the path is_____.


46.

Construct a quadrilateral ABCD of which AB = 3 cm, BC = 5 cm, AC = 4 cm, AD = 5 cm, BD = 5 cm. Then construct a triangle of area equal to the area of ABCD. Find the dimensions of the triangle.

Answer»

Construct a quadrilateral ABCD of which AB = 3 cm, BC = 5 cm, AC = 4 cm, AD = 5 cm, BD = 5 cm. Then construct a triangle of area equal to the area of ABCD. Find the dimensions of the triangle.


47.

How many tangents can be drawn to a circle?

Answer»

How many tangents can be drawn to a circle?


48.

Factorise 27x3+y3+z3−9xyz [2 MARKS]

Answer»

Factorise 27x3+y3+z39xyz [2 MARKS]

49.

The lengths of a triangle are 6cm,8cm and 10cm. Then the length of perpendicular from the opposite vertex to the side whose length is 8cm is:

Answer»

The lengths of a triangle are 6cm,8cm and 10cm. Then the length of perpendicular from the opposite vertex to the side whose length is 8cm is:

50.

Write the coordinates of a point which is at a distance of 3 units from the x-axis and 7 units from the y-axis.

Answer»

Write the coordinates of a point which is at a distance of 3 units from the x-axis and 7 units from the y-axis.