Data Interpretation - Pie Charts - Discussion

Discussion Forum : Pie Charts - Pie Chart 4 (Q.No. 2)
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.


2.
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 ?
16.1 %
18 %
14 %
None of these
Answer: Option
Explanation:

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%)

Discussion:
24 comments Page 3 of 3.

CHIDRE said:   9 years ago
Here 50% of IBM sales is increased okay but why you are taking 50% on 28 instead of 10%? Because 1st chart is of market share, second chart is of sales.

Zahid said:   1 decade ago
@Anoop.

From where did you get 14 and 2.1 ?

Anoop said:   1 decade ago
Total sales in value in 2005 = US $1,650,000.
Since this is all about percentage the value doesn't matter.
So we assume the total sales in value in 2005 = US$100(instead of 1650000)

In 2005 IBM's contribution was 28% = $28(in cash)
IBM got 50% increase in sales ie $14 (14% of 100)

In 2005 Apples's contribution was 14% = $14(in cash)
Apple got 15% increase in sales ie $ $2.1 (2.1% of 100)

The net increase in sales = 14+2.1
=16.1

%ge increase in sales = 16.1*100/100
= 16.1

Joy broto nath said:   1 decade ago
I cannot understand how IBM sales if go up by 50% contribute to increase of 14 to total sales?


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