Data Interpretation - Pie Charts - Discussion

Discussion Forum : Pie Charts - Pie Chart 9 (Q.No. 2)
Directions to Solve

The circle-graph given here shows the spendings of a country on various sports during a particular year. Study the graph carefully and answer the questions given below it.


2.
How much percent more is spent on Hockey than that on Golf?
27%
35%
37.5%
75%
Answer: Option
Explanation:

Let the total spendings on sports be Rs. x. Then,

Amount spent on Golf = Rs. ( 36 x x ) = Rs. x .
360 10

Amount spent on Hockey = Rs ( 63 x x ) = Rs. 7x .
360 40

Difference = Rs. ( 7x - x ) = Rs 3x .
40 10 40

Therefore Required percentage = Rs. ( ( 3x/40 ) x 100 ) % = 75%.
x/10

Discussion:
17 comments Page 1 of 2.

Prem Tenyoung said:   3 years ago
(Hockey-golf)/golf.

Simply;

When we are finding the difference we should minus the lowest value with the highest value and the answer we got should be divided by the lowest value. This trick works for graphs and piecharts. For pie charts and graphs you will not get the wrong answers using this method.

So,
63 - 36 = 27.
27/36 x 100 = 75%.
(7)

Obi-Wan Kenobi said:   4 years ago
I can't understand this Can anyone help me to get it?

Nandita said:   4 years ago
@Arpita.

Required percentage = maximum value upon minimum value into 100 (because we have to find that hockey is how much more than golf means increased value].

Maximum value= 3x/10.
Minimum value=x/10.
Maximum/ minimum.

= [3x/10]/ (x/10) *100=75%.

Arpita said:   4 years ago
Please explain the last step briefly.

J.Ruchitha said:   4 years ago
But why should we divide 27/36 and not 27/63? Please tell me.

Sunita said:   5 years ago
Why is it 27/36. Why we can't calculate 27/360*100?

Kamen said:   6 years ago
The question must be understood as: the ratio between (the difference of spending) and (spending on golf).

Thus difference of spending = 63-36°.
-> ratio = (63-36)/36 = 0.75.

Sushmitha said:   6 years ago
Can anyone explain this clearly?

Rashida Islam said:   7 years ago
Why is it 27/36 and not 27/360?

Nirmala said:   8 years ago
Nice method to understood. Thank you all.


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