# Data Interpretation Practice Questions – Set 92

Data Interpretation Practice Questions – Set 92
Directions (1 – 5): Study the follwing bar graph and answer the questions followed:
Below bar graph shows percentage breakup of income of Mr. Sai Ram from various sources during various years in thousands.
1. What is the average income of Mr.Sai Ram from coaching during all the years in thousands?
a) 445
b) 450
c) 465
d) 460
e) 440
2. If during 2014 Mr.Sai Ram spend 20% of total income on house rent and 30% and 20% of the remaining on grocery and electricity bill then what are his approximate average savings per month? (Note: Mr.Sai Ram spends only on Rent, Glocery and Electricity Bill)
a) 42660
b) 44850
c) 42750
d) 44750
e) 42800
3. What is the ratio of total income during 2010 and 2013 to 2011 and 2015 taken from all the sources together?
a) 128 : 125
b) 128 : 127
c) 123 : 125
d) 128 : 123
e) 119 : 112
4. During which of the following years income from salary source is more than the average income from salary for all the years together?
a) 2012, 2014 and 2015
b) 2013, 2014 and 2015
c) 2012, 2013 and 2015
d) 2011, 2014 and 2015
e) 2014 and 2015
5. If during 2016 salary increased by 10% and income from coaching decreased by 5% and rest remains the same then what are his average monthly savings if he spends 80% of the total income?
a) 22750
b) 22975
c) 24850
d) 20756
e) 24750
Direction (6 – 10): Study the following table carefully to answer the questions that follow:
Number of flights cancelled by five different airlines in six different years
 Airlines P Q R S T Year 2005 240 450 305 365 640 2006 420 600 470 446 258 2007 600 680 546 430 610 2008 160 208 708 550 586 2009 140 640 656 250 654 2010 290 363 880 195 483
6. Number of flights cancelled by airlines-P and R together in the year 2007 was approximately what percentage of number of flights cancelled by airlines-S in the year 2005?
a)    356
b)    280
c)     265
d)    340
e)    314
7. If 40 percent of flights in the year 2010 by airlines-R were cancelled due to bad weather conditions and rest were cancelled due to technical fault. What was the number of flights cancelled due to technical fault?
a)    528
b)    568
c)     468
d)    548
e)    None of these
8. What was the average number of flights cancelled by airlines P, R, S and T in the year 2008?
a)    551.5
b)    501
c)     405
d)    442.4
e)    None of these
9. What was the approximate percent increase in number of flights cancelled by airlines’ S in the year 2008 as compared to previous year?
a)    127
b)    28
c)     150
d)    45
e)    117
10. What was the difference between the highest number of flights cancelled by airlines-Q and the lowest number of flights cancelled by airlines-T out of all the six years?
a)    446
b)    456
c)     432
d)    442
e)    None of these

Solutions:
1. E) Income from coaching = (475 + 450 + 440 + 435 + 360 + 480) = 2640
Required average = 2640/4 = 440

2. A) Total income of Mr.Sai Ram during 2014 = 1280000
Total house rent = 1280000 × 20/100 = 256000
Remaining = 1280000 – 256000 = 1024000
Expenditure on grocery and electricity bill = 1024000 × (20 + 30)/100 = 512000
Remaining amount = 1024000 – 512000 = 512000
Required average savings = 512000/12 = 42660

3. A) Total income during 2010 and 2013 = 1265 + 1295 = 2560
Total incoming during 2011 and 2015 = 1150 + 1350 = 2500
Required ratio = 2560 : 2500 = 128 : 125

4. E) Average of income from salary = (450 + 450 + 480 + 485 + 520 + 525)/6 = 485
Clearly, during 2014 and 2015 salary is more than average salary

5. B) Income from salary = 525000 × 110/100 = 577500
Income from coacing = 480000 × 95/100 = 456000
Total income = 577500 + 456000 + 345000 = 275700
Required average monthly savings = 275700/12 = 22975

6. E) Number of flights cancelled by airlines-P and R together in the year 2007 = (600 + 546) = 1146
Number of flights cancelled by airlines-S in the year 2005 = 365
Number of flights cancelled by airlines-P and R together in the year 2007 was approximately what percentage of number of flights cancelled by airlines-S in the year 2005 = (1146 /365) × 100 = 314%

7. A) If 40 percent of flights in the year 2010 by airlines-R were cancelled due to bad weather conditions and rest were cancelled due to technical fault
So, flights cancelled due to technical fault in the year 2010 by airlines-R = 100% - 40% = 60%
Total number of flights cancelled in the year 2010 by airlines-R = 880
The number of flights cancelled due to technical fault = (60 × 880)/100 = 528

8. B) Number of flights cancelled by airlines P, R, S and T in the year 2008 = ( 160 + 708 + 550 + 586 ) = 2004
The average number of flights cancelled by airlines P, R, S and T in the year 2008 = (2004/4) = 501

9. B) Number of flights cancelled by airlines’ S in the year 2008 = 550
Therefore, number of flights cancelled by airlines’ S in the previous year i.e 2007 = 430
Difference between number of flights cancelled by airlines’ S in the year 2008 and the previous year i.e 2007 = ( 550 – 430 ) = 120
The approximate percent increase in number of flights cancelled by airlines’ S in the year 2008 as compared to previous year
= difference between number of flights cancelledflights cancelled year 2008×100difference between number of flights cancelledflights cancelled year 2008×100
= (120/430) × 100 = 27.9% ≈ 28%

10. E) The highest number of flights cancelled by airlines-Q = 680
The lowest number of flights cancelled by airlines-T = 258
The difference between the highest number of flights cancelled by airlines-Q and the lowest number of flights cancelled by airlines-T out of all the six years = (680 – 258) = 422