Presentation of Data Test

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Presentation of Data Test - 29

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Weekly Quiz Competition

Question 1
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The circle graph given here shows the spending of a country on various sport. What percent of total is spent on tennis?

A
$$\dfrac{25}{2}\%$$

B
$$\dfrac{45}{2}\%$$

C
$$25\%$$

D
$$45\%$$

Solution

Required percent is $$=\dfrac{45}{360} \times 100=\dfrac{25}{2}\%$$
Question 2
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The circle graph given here shows the spending of a country on the various sports. On which game money is spent most?

A
Hookey

B
Criket

C
Football

D
Golf
Question 3
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The circle graph given here shows the spending of a country on various sport. How much percent more is spent on hocky than golf?

A
$$33\%$$

B
$$347\%$$

C
$$48.2\%$$

D
$$42.8\%$$

Solution

Required $$\% = \dfrac{63-36}{63}\times 100 = 42.8\%$$
Question 4
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How many people read newspaper in Delhi.

A
$$10$$

B
$$20$$

C
$$30$$

D
$$40$$

Solution

Given that bar with lines in the people reading newspaper and the empty bar is the people watching TV.
From the given graph, for the city Delhi, we can observe that the height of the bar with lines is $$20$$.
Therefore, Delhi has $$20$$ people who read newspaper.
Question 5
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The number of votes received in the election of class monitor are
Mona $$-$$ $$6$$ votes,
Payal $$-$$ $$10$$ votes,
Prashant $$-$$ $$2$$ votes,
Sona $$-$$ $$20$$ votes,
Rajen $$-$$ $$15$$ votes,
Meera $$-$$ $$4$$ votes,
Subhash $$-$$ $$3$$ votes
In a circle graph the central angle corresponding to the votes of Sona, Mona, Meera and Subhash are

A
$$120^\circ, 36^\circ, 24^\circ, 18^\circ$$

B
$$38^\circ, 115^\circ, 25^\circ, 20^\circ$$

C
$$50^\circ, 30^\circ, 130^\circ, 30^\circ$$

D
$$72^\circ, 36^\circ, 48^\circ, 150^\circ$$

Solution

Total no of votes $$= 6 + 10 +2 + 20 + 15 + 4 + 3 = 60$$
Central angles corresponding to the various votes
Mona $$=\cfrac{6\times 360^o}{60}=36^\circ$$
Payal $$=\cfrac{10\times 360^o}{60}=60^\circ$$
Prashant $$=\cfrac{2\times 360^o}{60}=12^\circ$$
Rajen $$=\cfrac{15\times 360^o}{60}=90^\circ$$
Subhash $$=\cfrac{3\times 360^o}{60}=18^\circ$$
Sona $$=\cfrac{20\times 360^o}{60}=120^\circ$$
Meera $$=\cfrac{4\times 360^o}{60}=24^\circ$$
Question 6
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Directions For Questions

900 men volunteered for joining the armed force. study the pie-graph and answer the following

...view full instructions

What percentage of men volunteered to join navy force?

A
25%

B
21.97%

C
16.67%

D
49%

Solution

Percentage of men volunteered to join navy force $$=\frac{60}{360}\times 100 = 16.67\%$$
Question 7
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The number of students in a hostel, speaking hindi is $$40$$, bengali is $$25$$ and english $$35$$. If it is represented in pie chart central angle corresponding to hindi is _____

A
$$152^\circ$$

B
$$72^\circ$$

C
$$40^\circ$$

D
$$144^\circ$$

Solution

Central angle $$=\dfrac{40}{40+25+35}\times 360^\circ=\dfrac{40}{100} \times 360^\circ = 144^\circ$$
Question 8
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Directions For Questions

900 men volunteered for joining the armed force. study the pie-graph and answer the following

...view full instructions

How many men volunteered for air force?

A
375

B
250

C
150

D
125

Solution

No of men joining air force $$=\dfrac{100}{360}\times 900 = 250$$
Question 9
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Directions For Questions

The following chart represents the number of students who passed the group examination.

...view full instructions

In which year showed the lowest result in Group exams?

A
$$2001$$

B
$$2003$$

C
$$2000$$

D
$$2002$$

Solution

Compare the respective pass percentage for three years : $$2000, 2001, 2002$$ and $$2003$$.
$$\dfrac{54 \times 100}{66} > \dfrac{39\times 100}{49}< \dfrac{57\times 100}{62}> \dfrac{70\times 100}{79}$$
$$2000 = 81.81\%$$
$$2001 = 79.59\%$$
$$2002 = 91.9\%$$
$$2003 = 88.6\%$$
So, in the year $$2001$$ showed the lowest result in Group exams.
Question 10
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Directions For Questions

The following chart represents the number of students who passed the group examination.

...view full instructions

What was the percentage of students who succeeded in at least one of three exams in $$2002$$?

A
$$65.7\%$$`

B
$$76.2\%$$

C
$$87.2\%$$

D
$$91.9\%$$

Solution

Total percentage of students who succeeded in at least one of three exams in $$2002 =$$ $$\dfrac{57\times 100}{62}$$
$$= 91.9\%$$