Explore topic-wise InterviewSolutions in .

Every morning, MR.$X$ either reads a book or watches T.V. The probability that he watches T.V. is $4/5$. If he watched T.V., there is a probability of $3/4$ that he falls asleep. If he reads a book the probability that he falls asleep is $1/4$. On one evening Mr.$X$ is found to be asleep. The probability that he watched T.V. is:

Find the value of $\frac{(a^2+2a)}{2a}+5$ if 'a' can have values 6, 16.

Which of the following is an example of Non-polyhedron?

If $x$ and $y$ are distinct integers, then which of the following is true about $\frac{x+y}{2}$ ?

Which of the following is the factorisation of $8x^3+y^3$?

Find the angle measure x in the given figure.

Question 90(iv)

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



How many students have height less than 140 cm ?

Draw appropriate graph to depict the runs scored by the Indian team. [2 MARKS]

$\begin{array}{cc}\text{Players}& \text{Score}\\ \text{Rahul}& 90\\ \text{Sachin}& 99\\ \text{Saurav}& 56\\ \text{Sehwag}& 30\\ \text{Gambhir}& 30\\ \text{Yuvraj}& 48\\ \text{Kohli}& 82\\ \text{Zaheer}& 0\\ \text{Nehra}& 1\\ \text{Mishra}& 19\end{array}$

A car covers a distance of ${60}^k$ metres in an hour. Calculate the speed of the car in m/sec.

The surface area of a cube is 864 cm². Its volume is

A hundred rupee note was changed into ten rupee notes and twenty rupee notes. There were seven notes in all. How many of each denomination were there?

In the following pie chart if A contains 50 students, then the total number of students is?

(i) An ice-cream cone (ii) a cricket ball (iii) a glass tumbler (iv) a brick.

Which of the above are polyhedrons?

If John sells his bicycle for Rs.637, he will suffer a loss of 9%. For how much should it be sold, if he desires a profit of 5% ?

What is the greatest number than can be represented on a number line?

1. -1

Construct a 5 × 5 magic square using all even numbers from 1 to 50.

There are 1800 students in a school. 800 selected football, 750 selected basketball and the remaining selected cricket.Find the ratio of the total number of students to the number of students who selected cricket or football.

Jordan is very conscious about his health. He goes for a morning walk on a daily basis. He keeps a track of the time that he needs to cross different distances as tabulated below.



Miles
Time (minutes)

Square of odd numbers can be expressed as:

Unlike terms can be _______.

Question 4

Construct the Rectangle OKAY where

OK=7 cm, KA= 5cm

Question 116(i)

Following is a pie chart showing the amount spent (in Rs thousands) by a company on various modes of advertising for a product.

Now, answer the following questions

Which type of media advertising is greatest amount of the total ?

Given:(x+y+z)×(ab+1)=1

Find the value of z if x is additive inverse of y and a is multiplicative inverse of b.

If we take regular data readings at small time intervals, what type of graph is most suitable?

In the given figure, If the area of parallelogram BIPS is $144m^2,$
then the area of $\Delta NPSis$ _____.

An football camp of 30 boys has provision for 20 days. After 10 days, 10 boys left the camp. The food will last for

Find the cube of $-\frac{2}{5}$?

Simplify:

$[{(5z-2)}^2+40z]÷(5z+2)$

In the adjoining figure, O is the centre of the circle whose diameter is MN. Measures of some central angles are given. Find the measure of angle AOB.

Question 84 (iv)

Campus and Welfare Committee of school is planning to develop a blue shade for painting the entire school building. For this purpose, various shades are tried by mixing containers of blue paint and white paint. In each of the following mixtures, decide which is a lighter shade of blue and also find the lightest blue shade among all of them

Find angle x and measure of each exterior angle of the given figure. [4 MARKS]

$\text{In parallelogram ABCD,}\angle A=3times\angle B.$

$\text{Find all the angles of the parallelogram.}$

$\text{In the same parallelogram,~if}AB=5x-7and$

$CD=3x+1;\text{find the length of CD.}$