@CSAT/IBPS aspirants. First solve these two DI (Data Interpretation) sets on your own, using pen and paper. Then scroll down and check answer/explanations/shortcuts.
Time: 30 mins. Correct Ans: 1 m, Wrong answer=0.33 m.
 Data Interpretation Ā Set#1: Pie Chart
 DI Set#2: PieChart CO2 Emission
 DI Set #3: Bar graph on Profitloss
 Solution Set#1: Pie Chart with Shortcuts
 Solution: Set #2: CO2 Emission Pie Chart
 Solution:Set #3 Bar Chart
Data Interpretation Set#1: Pie Chart
The following pie chart cost of constructing one house. The total cost was Rs. 6 lakhs. (source FCI/SSC Nov. 2012 Paper)
1. The amount spent on cement is
2. The amount spent on labour exceeds the amount spent on steel by
3. The amount spent on cement, steel and supervision is what percent of the total cost of construction?

4. The amount spent on labour exceeds the amount spent on supervision by
5. The amount spent on Timber is

DI Set#2: PieChart CO2 Emission
The total annual CO2 emissions from various sectors are 5 mmt. In the Pie Chart given below, the percentageĀ contribution to CO2 emissions from Ā various sectors is indicated.
1. Which of the following sectors together emit 2.5 mmt of CO2 every year?

2. Which of the following sectors have emission difference of 1 mmt between them.

3. Emission of Domestic sector is how much % of Transport andĀ CommercialĀ sector combined?
 20%
 15%
 30%
 35%
4. In the next year, if emission from Commercial sector decreases by 20% of its current emission, while other sectors continue to emit same amount of CO2 as earlier then What will be the new % contribution of Thermal power sector (approximatly)?
 31.9%
 39.8%
 42.7%
 36.5%
5. Which of the following is incorrectly matched?
a) Domestic=54 degrees.
b) Thermal=125 degrees.
c)Ā commercialĀ =72 degrees.
d) transport=108 degrees.
DI Set #3: Bar graph on Profitloss
Observe this graph and answer questions (source FCI/SSC Nov. 2012 Paper)
1. The amount of maximum profit as seen from the diagram is
2. The amount of total loss incurred during 20052010 is

3. The ratio of the maximum profit earned to the minimum loss suffered is
4. If the loss is x% of the profit for the years under study, then x is

Solutions for the DI questions
Solution DI Set#1: Pie Chart with Explainations/Shortcuts
You might be tempted to transform degrees into percentages and find absolute Rupee value of each item (timber, labour etc). But in the exam, donāt waste time by calculating everything. Only calculate the stuff that is asked.
1. The amount spent on cement is
 Rs.2,00,000
 Rs.1,60,000
 Rs.1,20,000
 Rs.1,00,000
Total is Rs. 6,00,000 (=360 degrees of the circle)
Cement is 72 Degrees.
Apply the ratio principle
Degrees  Value 
72 (Cement)  M? 
360(total)  6 lakhs 
Divide left column on one side and right column on the other side.
72/360= M/6 lakhs
M=(72*6)/360=1.2 lakhs.
2. The amount spent on labour exceeds the amount spent on steel by
 5% of the total cost
 10% of the total cost
 12% of the total cost
 15% of the total cost
There is no need to find absolute values. Just observe the degrees.
Item  Degrees 
Labour  90 
Steel (Base %)  54 
Difference  36 
So the difference between Labour and Steel is 36 degrees.
And total cost is (6lakh=) 360 degrees.
So the percentage= 36/360 x 100 =10% of the total cost.
Answer (B)
3. The amount spent on cement, steel and supervision is what percent of the total cost of construction?
 40%
 45%
 50%
 55%
Again no need to find absolute values. Just observe the degrees.
degrees  
Cement  72 
Steel  54 
Supervision  54 
Total  180 
He is asking, āwhat percent of the total cost of construction?ā
So total cost (360 degrees) is the ābaseā
%=(180/360) x 100
=50%
4. The amount spent on labour exceeds the amount spent on supervision by
 Rs.2,00,000
 Rs.16,000
 Rs.1,20,000
 Rs.60,000
Again no need to find absolute values for both items. Just observe the degrees.
Difference between labour and supervision
=9054
=36 degrees
Shortcut: 36 degrees =10% of a circle. (because total is 360 degrees)
So the amount spend = 10% of total (6,00,000)= one decimal leftwards=60,000.
If shortcut is not clicking your mind, no problem. Go by ratio principle
Degrees  Value 
36 (difference between labor and supervision)  M? 
360 (total)  6 lakhs 
Divide left column on one side and right column on the other side.
36/360= M/6 lakhs
M=(36*600000)/360
M=60,000
Answer is (D)
5. The amount spent on Timber is
 Rs.60,000
 Rs.90,000
 Rs.1,20,000
 Rs.36,000
Observe that degree/percentage of Timber is not given the chart.
So, first task is to find degrees of timber.
In a circle Total=360 degrees.
So Timberās degree
=360 MINUS the degrees of remaining items
=360(54+54+54+72+90)
=36 degrees.
Now use the concept given in previous question,
36 degrees= 10% of total cost=60,000 rupees.
Answer (A)
Solution: Set #2: CO2 Emission Pie Chart
1. Which of the following sectors together emit 2.5 mmt of CO2 every year?
 Thermal and Transport
 Domestic andĀ Commercial
 Transport andĀ Commercial
 CommercialĀ and Thermal
Total emission is 5.Ā And 2.5mmt is 50% (half) of 5 (total emission)
From the given circle, transport + commercial, represent half circle (50%) Similarly Thermal+Domestic is also 50%. But it is not given in options.Ā So answer is (C): Transport +Ā Commercial.
2. Which of the following sectors have emission difference of 1 mmt between them.
 Domestic andĀ Commercial
 Transport andĀ Commercial
 Thermal and Domestic
 Thermal and Transport.
 Total is 5mmt (100%)Ā So 1mmt=1 x 100/5=20%.
 Find out which two sectors have % difference of 20%?
 Thermal minus Domestic=3515=20%. So (C) is the answer.
3.Ā EmissionĀ of Domestic sector is how much % of Transport and Commercial sector combined?
 20%
 15%
 30%
 35%
Observe the chart
Required %
=(15/50) x 100
=30% answer is (C)
4. In the next year, if emission from Commercial sector decreases by 20% while other sectors continue to emit same amount of CO2 as earlier then What will be the new % contribution of Thermal power sector?
Right now Commercial sector emits 20% of 5mmt=1/5 x 5=1mm
Next year 20% decrease=20% of 1mm=0.2mm will be less emitted.
But other sectors remains the same.
So total emission next year=5 minus 0.2=4.8mm.
And Share of thermal power
=(35% of 5)/4.8
=0.35*5/4.8
=36.5% (if you had trouble in longdivision, use the speed maths %approximation trick CLICK ME)
5. Which of the following is incorrectly matched?
a) Domestic=54 degrees.
b) Thermal=125 degrees.
c)Ā commercialĀ =72 degrees.
d) transport=108 degrees.
100%=360 degreesĀ So 1%=3.6 degree.
Multiply every sectorās % with 3.6 and youāll getĀ correspondingĀ degree.
Ans (B) because correct degree of Thermal should be 35 x 3.6=126 degrees.
Solution :Set #3 Bar Chart (With explaination)
Be careful about the āunitā, Thousand/lakhs.
1. The amount of maximum profit as seen from the diagram is
 2 thousand rupees
 1.5 thousand rupees
 1 thousand rupees
 4.5 thousand rupees
The bar of 2008 is longest among all. So 4.5 Ans (D)
2. The amount of total loss incurred during 20052010 is
 3 thousand rupees
 2.5 thousand rupees
 1.5 thousand rupees
 2 thousand rupees
Loss occurs during 2006 and 2009.
Year  Loss 
2006  1.5 
2009  1.0 
Total  2.5 answer (B) 
3. The ratio of the maximum profit earned to the minimum loss suffered is
 4 : 3
 3 : 4
 9 : 2
 2 : 9
Max profit (2008)  4.5 
Min Loss (2009)  1 
Ratio=4.5/1=45/10=9/2
Answer (C)
4. If the loss is x% of the profit for the years under study, then x is
 15
 25
 20
 19
Weāve to take the total of profits and losses made in all years so,
Profit  Loss  
2005  2.5  0 
06  0  1.5 
07  3.5  0 
08  4.5  0 
09  0  1 
10  2  0 
Total  12.5  2.5 
Profit: Loss
=2.5/12.5
=1/5
=20% (remember the fraction to percentage table: Click ME.)
Answer is (C)