Bar graph Difficult Questions and Answers | Page - 2

Bar graph

Direction: Study the following graph carefully to answer the questions that follow : Distance (in Km) traveled by 5 different trucks in a day.

What is the average distance traveled by all the trucks together?

1. 510 Km
1. 515 Km
1. 425 Km
1. 475 Km
1. None of these

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Required Average distance covered by all the trucks = Total distance covered by all the trucks
Total number of the trucks

Correct Option: D

Given in the bar graph :-
Distance traveled by Trucks A = 475 , B = 350, C = 550, D = 425, E = 575,
Total distance covered by all the trucks = 475 + 350 + 550 + 425 + 575 = 2375 Km
Total number of the trucks = 5
Required Average distance covered by all the trucks = Total distance covered by all the trucks
Total number of the trucks

Required Average distance covered by all the trucks = 2375 = 475
5

The distance travelled by Truck E is approximately what percent of the total distance travelled by Track B and C together?

1. 58
1. 60
1. 52
1. 62
1. 55

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Required percentage = Total distance covered by E x 100 %
Total distance covered by B and C together

Correct Option: D

As per given graph , we can see that
Total distance covered by E = 575 Km , Total distance covered by B and C together = 350 + 550 = 900 Km
Required percentage = Total distance covered by E x 100 %
Total distance covered by B and C together

= 575 x 100 ≈ 64% ≈ 62 %
900

What is the ratio of the distance traveled by Truck A to the distance traveled by Truck D?

1. 17 : 19
1. 11 : 15
1. 19 : 17
1. 15 : 11
1. None of these

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Required ratio = The distance traveled by Truck A : The distance traveled by Truck D

Correct Option: C

As per given above graph , we have
The distance traveled by Truck A = 475
The distance traveled by Truck Truck D = 425
Required ratio = The distance traveled by Truck A : The distance traveled by Truck D
Required ratio = 475 : 425 = 19 : 17

Direction: Study the following graph carefully to answer these questions. Number of students in College A and College B over the years.

What is the approximate percentage rise in the number of students of College B from 2005 to 2006?

1. 8
1. 12
1. 4
1. 15
1. 20

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percentage rise in the number of students of College B from 2005 to 2006
= Total increase in the number of students of College B from 2005 to 2006 x 100 %
Number of students of College B from 2005

Correct Option: A

Given :- Number of students of College B in year 2005 = 65000
Number of students of College B in year 2006 = 70000
Total increase in the number of students of College B from 2005 to 2006 = Number of students of College B in year 2006 - Number of students of College B in year 2005
= 70000 - 65000 = 5000
∴ percentage rise in the number of students of College B from 2005 to 2006
= Total increase in the number of students of College B from 2005 to 2006 x 100 %
Number of students of College B from 2005

= 5000 x 100 % = 7.69% ≈ 8%
65000

For which college(s) and in which year was the percent rise in number of students from the previous year the highest?

1. College A in year 2004 and College B in year 2005
1. Only College B in year 2004
1. College A in year 2004 and College B in year 2004
1. College A in year 2007 and College B in year 2004
1. None of these

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Percentage rise in number of students from college A in 2004
= total increase in number of students in College A from years 2004 to 2003 x 100%
total number of students in College A in year 2004

Percentage rise in number of students from college B in 2004
= total increase in number of students in College B from years 2004 to 2003 x 100%
total number of students in College B in year 2004

Correct Option: C

From above given graph , we can see that
Number of students from college A in 2003 = 20 × 10³
Number of students from college A in 2004 = 40 × 10³
Total increase in number of students in College A from 2004 to 2003 = 40 - 20 = 20 × 10³
Percentage rise in number of students from college A in 2004
= total increase in number of students in College A from years 2004 to 2003 x 100%
total number of students in College A in year 2004

= 20 × 10³ x 100 = 100 %
20 × 10³

And Number of students from college B in 2003 = 30 × 10³
Number of students from college B in 2004 = 60 × 10³
total increase in number of students in College B from years 2004 to 2003 = 60 - 30 = 30 × 10³
Similarly,
Percentage rise in number of students from college B in 2004
= total increase in number of students in College B from years 2004 to 2003 x 100%
total number of students in College B in year 2004

= 30 × 10³ x 100 = 100 %
30 × 10³