Bar Chart Questions and Answers

Company B’s sale in 2010 = 85000

In 2011 = 75000

Company D’s sale in 2010 = 95000

In 2011 = 105000

Total sale of Company B = 85000 + 75000 = 160000

Total sale of Company D = 95000 + 105000 = 200000

Therefore, ratio = \frac{160000}{200000} = \frac{4}{5} = 4:5

Company F’s sale in 2010 = 80000

In 2011 = 90000

Company C’s sale in 2010 = 105000

In 2011 = 120000

Total sale of company F = 80000 + 90000 = 170000

Total sale of company C = 105000 + 120000 = 225000

Percentage = \frac{170000}{225000} \times 100 = 75.5%

Average of all the six companies in 2010 = \frac{90 + 85 + 105 + 95 + 85 + 80}{6}

=\frac{540}{6} = 90

Average of all the six companies in 2011 = \frac{115 + 75 + 120 + 105 + 105 + 90}{6}

= \frac{610}{6} = 101.66

Percentage = \frac{90}{101.66} \times 100 = 88.5%

In 2011 the sale of company A, C, and F were: 115 + 120 + 90 = 325

Therefore, the average = \frac{325}{3} = 108.33

The average of the export is: \frac{3052 + 4165 + 2950 + 3722 + 3500 + 4780 + 5460 + 3500}{8} = 3891.12

Those years in which the export was above 3891.12 were: 2002-03, 2006-07, and 2007-08. Therefore, for 3 years

Those years in which the export was below 3891.12 were: 2001-02, 2003-04, 2004-05, 2005-06, and 2008-09. Therefore, for 5 years.

Thus the ratio is 3:5

The export of 2007-08 was 5460

The export of 2004-05 was 3722

The ratio = \frac{5460}{3722} = 1.46

Therefore, the export of 2007-08 was 1.46 times the export in 2004-05.

The upsurge in export was in the year: 2002-03, 2004-05, 2006-07, and 2007-08.
The increase in export compared to previous year:
For 2002-03 = \frac{4165-3052}{3052} \times 100
= 36.46%
For 2004-05 = \frac{3722-2950}{2950} \times 100
= 26.16%
For 2006-07 = \frac{4850-3500}{3500} \times 100
= 38.57%
For 2007-08 = \frac{5460-4780}{4780} \times 100
= 14.22%
According to the above calculations it is clear that the percent upsurge of export over the preceding year was lowest in the year 2007-08.

The export of 2007-08 was 5460

The export of 2003-04 was 2950

Therefore, increase = 5460 – 2950 = 2510

Thus, percent increase = \frac{2510}{2950} \times 100 = 85.08%

The percent change in the manufacturing of furniture by company B from the previous year:

For 1986 = \frac{50-40}{40} \times 100 = 25%

For 1987 = \frac{50-50}{50} \times 100 = 0%

For 1988 = \frac{55-50}{50} \times 100 = 10%

For 1989 = \frac{65-55}{55} \times 100 = 18.18%

Therefore, the minimum increase/fall was in the year 1986.

For company A the average production was: \frac{45 + 60 + 40 + 65 + 55}{5} = 53

For company B the average production was: \frac{40 + 50 + 50 + 55 + 65}{5} = 52

For company C the average production was: \frac{50 + 55 + 60 + 50 + 50}{5} = 53

Therefore, the average production was minimum for company B

Company C’s percent production to Company B’s percent production various years are:

1985 = \frac{50}{40} \times 100 = 125%

1986 = \frac{55}{50} \times 100 = 110%

1987 = \frac{60}{50} \times 100 = 120%

1988 = \frac{50}{55} \times 100 = 90.90%

1989 = \frac{50}{65} \times 100 = 76.92%

Therefore, the maximum percentage was in the year 1985.