Bar Charts
Data Interpretation

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Common Information

The bar graph given below shows the sales of books (in thousand numbers) from six branches of a publishing company during two consecutive years 2000 and 2001.

Common information image for Bar Charts, Data Interpretation:1016-1

Q.

Common Information Question: 3/5

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%

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Solution:
Option(D) is correct

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

$=\dfrac{1}{3}×(80 + 95 + 70)$

$=\dfrac{245}{3}$

Average sales (in thousand number) of branches $B1$, $B2$ and $B3$ in 2001:

$=\dfrac{1}{3}×(105 + 65 + 110)$

$=\dfrac{280}{3}$

Required percentage:

$=\left(\dfrac{245}{3}\right)×100%$

$=\left[\dfrac{(245/3)}{(280/3)}\right]× 100%$

$= 87.5%$


(2) Comment(s)


Bitan
 ()

All the options are wrong considering the question was right.


Shireen
 ()

Then what is the correct answer?