Explore topic-wise InterviewSolutions in Current Affairs.

Draw nets for the following polyhedrons :

A fraction is given in which numerator is less than denominator by three. If we add number seven in the numerator and subtract one from the denominator, $\frac{3}{2}$ is the new fraction which we get. Find the original fraction? [4 MARKS]

When 45% is converted to a fraction, what will be the fraction?

A test paper contains 100 true-false questions. The number of questions with the answer "true" was 59. Find the probability that a question’s answer is "false".

The ratio of the present ages of a mother and her daughter is 7:3.When the mother was 26 years old the daughter was 6 years old. Find the present age of the mother (in years)

The perimeter of the following figure is:

Solve the following equation :

$\frac{3x}{x+6}-\frac{x}{x+5}=2$

Which of the following pair of ratios are equal?

If $\sqrt{24}=4.899$, then the value of $\sqrt{\frac{8}{3}}$ is

Factorise : $4+y-14y^2$

State, whether the square of the following numbers is even or odd?

(i) 23 (ii) 54

(iii) 76 (iv) 75

When the rate of Tax is decreased from 9% to 6% for a coloured T.V.; Mrs Geeta will save Rs.780 in buying this T.V. Find the list price of the T.V.

Find the cube of 2$\frac{1}{3}$.

Solve $(ab+1{)}^2$ - $(ab{)}^2$ where, b - a = 1.

A car covers 20 km in 40 mins while a bike covers 20 km in 30 mins. What is the difference in their rates?

Question 1

In the following question out of the four options only one is correct, write the correct answer

The solution of which of the following equations is neither a fraction nor an integer?

(a) 3x + 2 = 5x + 2

(b) 4x – 18 = 2

(c) 4x + 7 = x + 2

(d) 5x – 8 = x + 4

Make a bar graph

$\begin{array}{cc}\text{Weight (kg)}& \text{Number Of Students}\\ 35.5-40.5& 5\\ 40.5-45.5& 2\\ 45.5-50.5& 12\\ 50.5-55.5& 2\\ 55.5-60.5& 45\end{array}$
[3 MARKS]

The sum of all interior angles of a regular polygon is ${1080}^{\circ }$. What is the measure of each of its interior angles ?

(a) 135${}^{\circ }$ (b) 120${}^{\circ }$ (c) 156${}^{\circ }$ (d) 144${}^{\circ }$

Question 90(ii)

Look at the histogram below and answer the questions that follow. ?

Which class interval has the least numebr of students ?

1. 1210

Evaluate: $\{6^2+(8^2{)}^{\frac{1}{2}}{\}}^3$

Let $F_1$ be the set of all parallelograms, $F_2$ the set of rectangles, $F_3$ the set of rhombuses, $F_4$ the set of squares and $F_5$ the set of trapeziums in a plane, then $F_1$ is equal to

The length of common chord of the circles $(x-a{)}^2+y^2$ =$a^2$ and $x^2+(y-b{)}^2$ = $b^2$ is

Factorise :

$x^2-x(a+2b)+2ab$

Find the continued products:
(i) $(x+1)(x-1)(x^2+1)$
(ii) $(x-3)(x+3)(x^2+9)$
(iii) $(3x-2y)(3x+2y)(9x^2+4y^2)$
(iv) $(2p+3)(2p-3)(4p^2+9)$

Find the squares of the following numbers using diagonal method :

(i) 98 (ii) 273
(iii)348 (iv) 295
(v) 171

Question 90(i)

Look at the histogram below and answer the questions that follow. ?

How many students have height more than or equal to 135 cm, but less than 150 cm ?

Question 139

Put three different numbers in the circles, so that when you add the numbers at the end of each line, you always get a perfect square.

If 20 cows graze 2 fields in 10 days, then how many fields will be grazed by 40 cows in 8 days?

The solution of the equation $\frac{x+5}{5x+8}=\frac{11}{38}$ is

($\frac{3}{8}$) + ( $\frac{-5}{7}$) is a_________number.

In the given figure, if AB || CD || EF, PQ || RS, $\angle RQD={25}^{\circ }$ and $\angle CQP={60}^{\circ }$, then $\angle ARS$ is equal to

Three prizes are to be distributed in a quiz contest. The value of the second prize is $\frac{5}{6}$ of the value of the first prize and the value of the third prize is $\frac{4}{5}$ of the second prize. If the total value of the three prizes is Rs.1500. Find the value of each prize. (in order of 1^st, 2^nd & 3^rd)

Question 46

To calculate the growth of a bacteria if the rate of growth is known, the formula for calculation of amount in compound interest can be used.

What do we call the part of an experiment which does not have any variable?

In a college, there are 10 periods per day, each of 40 minutes. The principal wants to reduce the number of periods without changing the total working hours. Find the duration of each period, if the number of periods is reduced to 8.

Multiply $(2x-\frac{1}{x})(3x+\frac{2}{x}).$

Seeta Devi has Rs 9 in fifty - paise and twenty five paise coins. She has twice as many twenty-five paise coins as she has fifty-paise coins. How many coins of each kind does she have ?

Tick $\left(✓\right)$ the correct answer in each of the following:
$(x-6)(x-6)=?$

(a) $(x^2-36)$
(b) $(x^2+36)$
(c) $(x^2-6x+36)$
(d) $(x^2-12x+36)$

The length of a rectangle is twice the width of it. If the perimeter of the rectangle is 42 m, find the area of the rectangle.

The edges of a triangular board are 6cm, 8cm and 10cm. The cost pf painting it at the rate of 9 paise per $c{m}^2$ is

Tea worth Rs. 135 per kg and Rs. 126 per kg are mixed in the ratio 1:2. The total cost of the mixture will be Rs. ___ per kg.