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Data Interpretation - Pie Charts - Discussion

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

The following pie-chart shows the percentage distribution of the expenditure incurred in publishing a book. Study the pie-chart and the answer the questions based on it.

Various Expenditures (in percentage) Incurred in Publishing a Book

1.
If for a certain quantity of books, the publisher has to pay Rs. 30,600 as printing cost, then what will be amount of royalty to be paid for these books?
Rs. 19,450
Rs. 21,200
Rs. 22,950
Rs. 26,150
Answer: Option
Explanation:

Let the amount of Royalty to be paid for these books be Rs. r.

Then, 20 : 15 = 30600 : r     =>     r = Rs. ( 30600 x 15 ) = Rs. 22,950.
20

Discussion:
60 comments Page 4 of 6.
Ilya said:   1 decade ago
Is there any simpler solution? solution provided is easier to analyze. I just still don't get why do we use 20 as the numerator. Thanks!
Shreya said:   1 decade ago
20 : 15 = 30600 : m => m = Rs. ( 30600 x 15 ) = Rs. 22,950.
Sreekanth said:   1 decade ago
20% = 30,600 then x = 1,53,000 therefore 5% = 7050 therefore answer is 22,950.
Anitha said:   1 decade ago
First calculate the TOTAL COST involved in all the process
20% of X = 30,600
so,
X=1,53,000
Now
15% of 1,53,000=22,950
Prabhat ojha said:   1 decade ago
If 20% .........30600
1%............30600/20
15%...........30600/20*15=22950
Jismi said:   8 years ago
Nice @Janani.
Swapnil said:   1 decade ago
But why are we calculating 20% to start with?

Can any one explain in detail?
Vikas said:   1 decade ago
20% of X = 30,600
so,
X=1,53,000
Now
15% of 1,53,000=22,950
David said:   1 decade ago
I agree with Siddharth's procedure, clear concept.
Atin said:   1 decade ago
I found that this solution is wrong why you are using 20% if the graph shows 10% for promotion.
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