Data Interpretation - Bar Charts - Discussion

Discussion Forum : Bar Charts - Bar Chart 1 (Q.No. 3)
Directions to Solve

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.


3.
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?
75%
77.5%
82.5%
87.5%
Answer: Option
Explanation:

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

Therefore Required percentage = [ 245/3 x 100 ] % = ( 245 x 100 ) % = 87.5%.
280/3 280

Discussion:
27 comments Page 3 of 3.

Abhinav said:   1 decade ago
Hi all,

Sales for B2 in 2000 is 75 not 70.

Arunchith said:   1 decade ago
Please help me how can I identified the denominator year and numerator year from question like this.

Sonia said:   1 decade ago
Because they have asked for the average of 3 branches only.

Srikanth said:   1 decade ago
Please clarify why 1/3 in both cases?

Indhu said:   1 decade ago
In the question the part which asks "what percentage of", should always be considered as the denominator substitution.

Ie. What percent of part: average sales of B1, B2, B3.

Numberator: Average sales of B1, B3, B6 = 245/3 = 81. 67.

Denominator:Average sales of B1, B2, B3 = 280/3 = 93. 33.

So, numerator/denominator = (81. 67/93. 33) *100% = 0. 88*100%= 87. 5%.
Answer is D.
(3)

Goverdhan said:   1 decade ago
Can any one tell me the short cut to solve these kind of problems, where big numbers are involved in division like the one above, 245/280= 0.875.

Vaibhav said:   1 decade ago
Question is Avg of 2001 % of Avg 2000 %. The answer however is other way round.

avg of 2001 (93.3) of avg of 2000 ( 81.6)
which would be 113.97


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