bar charts

The bar graph given below shows the sales of books (in thousand number) from six branches of a publishing company during two consecutive years 2000 and 2001. Sales of Books (in thousand numbers) from Six Branches - B1, B2, B3, B4, B5 and B6 of a publishing Company in 2000 and 2001.

What is the ratio of the total sales of branch B2 for both years to the total sales of branch B4 for both years?
 A 2:3 B 3:5 C 4:5 D 7:9
 ANS: D - 7:9

 Required ratio = (75 + 65) = 140 = 7 . (85 + 95) 180 9

Total sales of branch B6 for both the years is what percent of the total sales of branches B3 for both the years?
 A 68.54% B 71.11% C 73.17% D 75.55%
 ANS: C - 73.17%

Required percentage
 = (70 + 80) x 100 % (95 + 110)

 = 150 x 100 % 205
= 73.17%.

What percent of the average sales of branches B1, B2 and B3 in 2001 is the average sales of branches B1, B3 and B6 in 2000?
 A 75% B 77.5% C 82.5% D 87.5%
 ANS: D - 87.5%

Average sales (in thousand number) of branches B1, B3 and B6 in 2000

 = 1 x (80 + 95 + 70) = 245 . 3 3

Average sales (in thousand number) of branches B1, B2 and B3 in 2001
 = 1 x (105 + 65 + 110) = 280 . 3 3

 Required percentage = 245/3 x 100 % = 245 x 100 % = 87.5%. 280/3 280

What is the average sales of all the branches (in thousand numbers) for the year 2000?
 A 73 B 80 C 83 D 88
 ANS: B - 80

Average sales of all the six branches (in thousand numbers) for the year 2000

 = 1 x [80 + 75 + 95 + 85 + 75 + 70] 6
= 80.

Total sales of branches B1, B3 and B5 together for both the years (in thousand numbers) is?
 A 250 B 310 C 435 D 560
 ANS: D - 560

Total sales of branches B1, B3 and B5 for both the years (in thousand numbers)
= (80 + 105) + (95 + 110) + (75 + 95)
= 560.