CAT 2018 is being conducted on 25th December 2018
Data Interpretation (D I) will be a test for your analytical skills, practice with following Questions and answers with solutions on Pie Charts:
Directions to solve
The pie chart shows the distribution of New York market share by value of different computer companies in 2005
The pie chart shows the distribution of New York market share by volume of different computer companies in 2005.
Number of units sold in 2005 in New York = 1,500
Value of units sold in 2005 in New York = US $1,650,000.
For the year 2005, which company has realised the lowest average units sales price for PC?
D. Cannot be determined
Answer : Option D
Although it seems to be commodore, the answer cannot be determined due to the fact that we are unaware of the break-up of the sales value and volume of companies compromising the other categories.
Over the period 2005-2006, if sales (Value-wise) of IBM PC's increased by 50% and of Apple by 15% assuming that PC sales of all other computer companies remained the same, by what percentage (approximately) would the PC sales in New York (Value-wise) increase over the same period?
D. None of these
Answer : Option A
If we assume the total sales to be 100 in the first year, IBM's sales would go up by 50% (from 28 to 42) Contributing an increase of 14 to the total sales value.
Similarly, Apple's increase of 15% would contribute an increase of 2.1 to the total sales value. The net change would be 14+2.1 on 100. (i.e., 16.1%)
In 2005, the average unit sale price of an IBM PC was approximately (in US$)
Answer : Option D
IBM accounts for 28% of the share by value and 10% of the share by volume.
28% of 1650000 = 28x1650000/100 = 462000
10% of 1500 = 10 x 1500/100 = 150
Therefore, average unit sale price = 462000/150 = 3080.