Data Interpretation - Pie Charts - Discussion
Discussion Forum : Pie Charts - Pie Chart 1 (Q.No. 3)
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
3.
The price of the book is marked 20% above the C.P. If the marked price of the book is Rs. 180, then what is the cost of the paper used in a single copy of the book?
Answer: Option
Explanation:
Clearly, marked price of the book = 120% of C.P.
Also, cost of paper = 25% of C.P
Let the cost of paper for a single book be Rs. n.
Then, 120 : 25 = 180 : n  n = Rs. |
 |
25 x 180 |  |
= Rs. 37.50 . |
| 120 |
Discussion:
68 comments Page 1 of 7.
Shalini said:
6 months ago
Let us take CP as = 100%.
Marked price in percentage 20%.
Marked price = 180.
So,
CP + MP = 120%.
Now;
Paper Cost is in percentage = 25%.
Let's cross-multiply this;
120%= 180.
25% = x.
120% (x) = 25%(180).
(both side percentages getting cancelled)
120 * x = 25 * 180
x = 25 * 180/ 120
x = 3/2 * 25.
x = 37.5.
Marked price in percentage 20%.
Marked price = 180.
So,
CP + MP = 120%.
Now;
Paper Cost is in percentage = 25%.
Let's cross-multiply this;
120%= 180.
25% = x.
120% (x) = 25%(180).
(both side percentages getting cancelled)
120 * x = 25 * 180
x = 25 * 180/ 120
x = 3/2 * 25.
x = 37.5.
(6)
Kuenzang Pema Namgyel said:
6 months ago
CP + 20% of CP = 180.
CP + 20/100 of CP = 180.
Taking CP common,
(1 + 0.2)CP = 180
1.2CP = 180
CP = 180/1.2
CP = 150
Now,
25% of CP = X (paper cost).
20/100 * 150 = X.
X = 37.5.
CP + 20/100 of CP = 180.
Taking CP common,
(1 + 0.2)CP = 180
1.2CP = 180
CP = 180/1.2
CP = 150
Now,
25% of CP = X (paper cost).
20/100 * 150 = X.
X = 37.5.
(4)
Moom said:
1 year ago
See 100% mp + 20% cp = ₹180 total book value,
So 120% = ₹180.
Let's take × = 1%.
120x = 180.
X = 180/120 = 1.5.
Which means 1% = ₹1.5.
& Now paper cost is 25%.
So, 25 × 1.5 = 37.5.
So 120% = ₹180.
Let's take × = 1%.
120x = 180.
X = 180/120 = 1.5.
Which means 1% = ₹1.5.
& Now paper cost is 25%.
So, 25 × 1.5 = 37.5.
(10)
Khushboo baisoya said:
2 years ago
How CP is 25%? Please explain me.
(16)
Rohit said:
2 years ago
100% + 20% = 180 rupees
Then 120x = 180
x = 180/120 = 1.5 * 25 paper cost = 37.5.
Then 120x = 180
x = 180/120 = 1.5 * 25 paper cost = 37.5.
(16)
Kiyotaka said:
3 years ago
I think the ans will be 36,
Since MP is 20% more than CP and MP is given 180.
So, Calculate CP first which will be 20% less than MP(180) which will be 144. Then calculate 25% of CP(144), which will be 144/4 = 36.
Since MP is 20% more than CP and MP is given 180.
So, Calculate CP first which will be 20% less than MP(180) which will be 144. Then calculate 25% of CP(144), which will be 144/4 = 36.
(27)
Jiki said:
3 years ago
@ The question is only asking for the paper cost of a book and not all sorts of binding, promotion and other costs.
That is why we use this basic percentage method,
25% of the total cost is the paper cost of a book.
So, 25/100 *150 (why the total cost is being taken as 150, you yourself think carefully about it)
= 37.5 Rs.
That is why we use this basic percentage method,
25% of the total cost is the paper cost of a book.
So, 25/100 *150 (why the total cost is being taken as 150, you yourself think carefully about it)
= 37.5 Rs.
(10)
Raji said:
3 years ago
Plz, how 120 will come?
(11)
Sujith said:
4 years ago
How did you find cp is 120? Explain please.
(7)
Nima Lhamo said:
4 years ago
Let CP = 100%
Marked price = 20% + 100(c.p) = 120
Given,cost of paper=25%,
Marked price = RS 180,
Let's" x" be price of cost paper,
Therefore,cost of paper:marked price,
25% : 120%,
X : 180.
By Crossmultiplying.
We get,25 * 180=120x.
X = 4500/120,
X = 37.5.
Marked price = 20% + 100(c.p) = 120
Given,cost of paper=25%,
Marked price = RS 180,
Let's" x" be price of cost paper,
Therefore,cost of paper:marked price,
25% : 120%,
X : 180.
By Crossmultiplying.
We get,25 * 180=120x.
X = 4500/120,
X = 37.5.
(23)
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