MCQ Questions for Class 8 Maths Introduction To Graphs Quiz 2

In which city number of people watching T.V is same as people reading newspaper?

0%
Delhi
0%
Mumbai
0%
Kolkata
0%
Patna

Explanation

In Kolkata people watching T.V is same as reading newspaper i.e

$30$

$\therefore$ Correct answer is option

$C$ .

What is the ratio of the total sales of laptop in Kerala state for both years to the total sales of laptop in Gujarat state for both years?

0%
$8:13$
0%
$13:8$
0%
$8:5$
0%
$5:8$

Explanation

Sales of laptop in Kerala state

$= 6 + 20 = 26$
Sales of laptop in Gujarat state

$= 12 + 4 = 16$
So, the ratio

$=$

$\dfrac{26}{16}$
Ratio

$= 13:8$

Name the graph which is used to represent data in discrete manner?

0%
pie
0%
histogram
0%
bar
0%
frequency polygon

In a bar chart, the ______ are represented by the heights of the bars.

0%
variables
0%
weights
0%
frequencies
0%
constant

In which graph, frequency is represented by the area of each rectangle?

0%
bar
0%
pie
0%
line
0%
histogram

The line graph shows the income of RBI department. In which of the years was the annual income the maximum?

0%
$1996$
0%
$1999$
0%
$2000$
0%
$2001$

Explanation

In graph shows the income of the RBI department was maximum in the year

$1999$ .

The line graph shows the number of students in each department of a school. What does the second number in the ordered pair

$(9, 10)$ represent?

0%
Number of department
0%
Line graph
0%
Number of students
0%
School department

Explanation

The second number in the ordered pair

$(9, 10)$ represent

$10$ number of students in the department

$9$ .

The line graph shows the income of RBI department. In which of the years was the annual income the minimum?

0%
$1995$
0%
$1999$
0%
$2000$
0%
$2001$

Explanation

In graph shows the income of the RBI department was minimum in the year

$1995$ .

The width of the bars does not matter in _____ graph.

0%
line
0%
histogram
0%
pie
0%
bar

Which is a two dimensional graph?

0%
pie
0%
bar
0%
histogram
0%
frequency curve

The line graph shows the number of students in each department of a school. What does the first number in the ordered pair

$(8, 30)$ represent?

0%
Number of department
0%
Line graph
0%
Number of students
0%
School department

Explanation

The first number in the ordered pair

$(8, 30)$ represent

$8$ number of departments.

The frequency curve shows the number of students ages

$11$ through

$17$ in Chennai city that have mobile phones. Refer to the frequency curve below to answer each question.

How many mobile phones do

$13$ year-old have?

0%
$10$
0%
$15$
0%
$20$
0%
$25$

Explanation

$13$ year-old have

$15$ mobile phones as shown in the graph.

The frequency curve shows temperatures over

$11$ year in Bangalore. Use the graph to answer the questions below.
Which year had the lowest temperature?

0%
$2001$
0%
$2000$
0%
$2002$
0%
$2010$

Explanation

The graph shows that the lowest temperature is in the year

$2000$ .

Find the highest temperature in Bangalore over

$11$ years.

0%
$25^{o}C$
0%
$45^{o}C$
0%
$30^{o}C$
0%
$15^{o}C$

Explanation

On looking the graph, we get the highest temperature as

$45^{o}C$ in the year

$2002$ .

What is the difference in temperature between

$2003$ and

$2008$ ?

0%
$25^{o}C$
0%
$30^{o}C$
0%
$15^{o}C$
0%
$5^{o}C$

Explanation

$2003$ temperature

$=$

$30^{o}C$
In

$2008$ temperature

$=$

$25^{o}C$
So, the difference

$= 30 - 25 =$

$5^{o}C$

The frequency curve is similar to _____.

0%
histogram graph
0%
line graph
0%
bar graph
0%
pie graph

What is the range of temperatures in Bangalore over

$11$ years?

0%
$20^{o}C$
0%
$10^{o}C$
0%
$33^{o}C$
0%
$45^{o}C$

Explanation

Range of temperature = highest temperature

$-$ lowest temperature

$= 45 - 12 =$

$33^{o}C$
So, the range of temperatures in Bangalore over

$11$ years is

$33^{o}C$ .

How many years have temperature higher than

$35^{o}C$ ?

0%
$2$
0%
$3$
0%
$4$
0%
$5$

Explanation

Years

$2002$ and

$2005$ are having the temperature higher than

$35^{o}C$ .

Thus answer is

$2$ .

At what age do students have the greatest number of mobile phones?

0%
$14$
0%
$15$
0%
$16$
0%
$17$

Explanation

At the age

$16$ , the students have the greatest number of mobile phones.

In which age students do have the least number of mobile phones?

0%
$11$
0%
$12$
0%
$13$
0%
$14$

Explanation

$12$ years old students have the least number of mobile phones.

How many sets had more even than negative numbers?

0%
$0$
0%
$1$
0%
$2$
0%
$3$

About how many mobile phones do

$14\dfrac{1}{2}$ year old have?

0%
$20$
0%
$30$
0%
$40$
0%
$50$

Explanation

On looking the graph, we can say

$14\dfrac{1}{2}$ year old have 40 mobile phones.

The annual maintenance cost of a machine in a factory over a

$2$ year period is represented in the histogram. By how much did the maintenance cost decrease in

$1998-99$ when compared to

$1994-95$ ?

0%
$150$
0%
$50$
0%
$200$
0%
$100$

Explanation

From the given histogram, we cay say

The maintenance cost decrease in

$1998-99$ when compared to

$1994-95 = 200 - 100 = 100$

The following line graph gives the ratio of the amounts of imports by a company to the amount of exports from that company over the period from

$1995$ to

$2001$ .

The imports were minimum proportionate to the exports of the company in the year ?

0%
$1995$
0%
$1996$
0%
$1997$
0%
$2000$

Explanation

The imports are minimum proportionate to the exports implies that the ratio of the value of imports to exports has the minimum value.
Now, this ratio has a minimum value

$0.35$ in

$1997$

Hence, the imports are minimum proportionate to the exports in

$1997$ .

What was the least number of mobile phones at any age?

0%
$10$
0%
$15$
0%
$20$
0%
$25$

Explanation

$10$ was the least number of mobile phones at any age.

If the imports of the company in 1996 was Rs. 272 crores, the exports from the company in 1996 was ?

0%
Rs. 370 crores
0%
Rs. 320 crores
0%
Rs. 280 crores
0%
Rs. 275 crores

Explanation

Ratio of imports to exports in the year 1996 = 0.85.
Let the exports in 1996 = Rs. x crores.
Then,

$\displaystyle \frac { 272 }{ x } =0.85\Rightarrow x=\frac { 272 }{ 0.85 } =320$

$\displaystyle \therefore$ Exports in 1996 = Rs. 320 crores.

The histogram shows the points scored by Reena's friends in a game. How many of her friends scored less than

$40$ points?

0%
$20$
0%
$31$
0%
$15$
0%
$10$

Explanation

On looking the graph, we would say the total score less than

$40 = 14 + 12 + 5 = 31$

Brain and Jared live in the same apartment complex and they both bike to and from the work every day. The figure above shows a typical commute home for each of them. Based on the figure, which of the following statements is true?

0%
It takes Brain longer to bike home because his work is farther away.
0%
It takes Jared longer to bike home because his work is farther away.
0%
Jared and Brain arrive home at the same time, so they must bike at about the same rate.
0%
Jared bikes a longer distance than Brain in the same amount of time, so Jared must bike at a faster rate.

Explanation

$\Rightarrow$ In the given figure we can see Jared's distance between workplace and the apartment is more than Brain's.

$\Rightarrow$ Jared takes the same time as Brain to travel that distance.

$\therefore$ Jared bikes a longer distance than Brain in the same amount of time, so Jared must bike at a faster rate.

Which of the following statements Is true?

0%
The x-axis is a vertical line
0%
The y-axis is a horizontal line
0%
The scale on both axes must be the same in a Cartesian plane
0%
The point of intersection between the x-axis and the y-axis is called the origin

What is the average numbers of vehicles manufactured by Company X over the given period ? (rounded off to nearest integer)

0%
$119333$
0%
$113666$
0%
$112778$
0%
$111223$

Explanation

Average number of vehicles manufactured by Company X

$\displaystyle =\frac { 1 }{ 6 } \times \left( 119000+99000+141000+78000+120000+159000 \right)$

$\displaystyle =119333$

CBSE Questions for Class 8 Maths Introduction To Graphs Quiz 2 - MCQExams.com

0:0:1

Practice Class 8 Maths Quiz Questions and Answers

CBSE Questions for Class 8 Maths Introduction To Graphs Quiz 2 - MCQExams.com

0:0:1

Practice Class 8 Maths Quiz Questions and Answers

Support mcqexams.com by disabling your adblocker.