Data interpretation Questions and Answers:Tabulation

 Data interpretation questions for competitive exams ,IBPS,BANK,SSC,NTPC,RRB exams:

Data interpretation questions dominates quantitative section of most of the competitive exams like, IBPS,SBI,Insurance exams,RRB,NTPC etc. It just require little practice to score well in this section.Here you can find tabular data interpretation questions and solutions. 

1.The following table gives the sales of batteries manufacture d by a company over the year. Study the table and answer the questions that follows.  (SBI PO 1998)

 Number of different types of batteries sold by a company over the year (In thousands)

Year	Types of batteries
	4AH	7AH	32AH	35AH	55AH	TOTAL
1992	75	144	114	102	108	543
1993	90	126	102	84	126	528
1994	96	114	75	105	135	525
1995	105	90	150	90	75	510
1996	90	75	135	75	90	465
1997	105	60	165	45	120	495
1998	115	85	160	100	145	605

 1.       The total sales of all the seven years is the maximum for which battery?

a)      4AH

b)      7AH       

c)       32AH                    

d)      35AH    

e)      55AH

2.       .What is the difference in the number of 35Ah batteries sold in 1993 and 1997?

a)      24000

b)      28000

c)       35000

d)      39000

e)      42000

3.       .The percentage of 4AH batteries sold to the total number of batteries sold was maximum in the year.

a)      1994

b)      1995

c)       1996

d)      1997

e)      1998

4.      . In the case of which battery there was continuous decrease in sales from 1992 to 1997?

a)      4AH

b)      7AH

c)       32AH

d)      35AH

e)      55AH

5.       .What was the approximate percentage increase in the sales of 55AH batteries in 1998 compared to   that in 1992?

a)      28%

b)      31%

c)       33%

d)      34%

e)      37%

Sol. 1. (c) The total sales (in thousands) of all the seven years for various batteries are:

For 4AH =75+90+96+105+90+105+115=676

For 7AH=144+126+114+90+75+60+85=694

For 32AH=114+102+75+150+135+165+160=901

For 35AH=102+84+105+90+75+45+100=601

For 55AH=108+126+135+75+90+120+145=799

Clearly sales are maximum in case of 32AH batteries.

2.(d): Required difference=[(84-45)×1000]=39000

3.(d): The percentage of sales of 4AH batteries to the total sales in different years are:

For 1992= [(75/543 )×100 ]%=13.81%

For 1993= [(90/528 )×100 ]%=17.05%

For 1994= [(96/525 )×100 ]%=18.29%

For 1995= [(105/510 )×100 ]%=20.59%

For 1996= [(96/465 )×100 ]%=19.35%

For 1997= [(105/495 )×100 ]%=21.21%

For 1998= [(115/605 )×100 ]%=19.01%

 Percentage is maximum in 1997

4.(b) From table it is clear that the sales of 7AH batteries decreased continuously from 1992 to 1997.

5.(d):Required percentage={ [(145-108)/100 ]×100}%=34.26%

 

2.Study the following table carefully and answer these questions (S.B.I.P.0. 2002)

NUMBER OF CANDIDATES APPEARED AND QUALIFIED IN A COMPETITIVE EXAMINATION FROM DIFFERENT STATES OVER THE YEARS

Year   State	1997		1998		1999		2000		2001
	App.	Qual.	App.	Qual.	App.	Qual.	App.	Qual.	App.	Qual.
M	5200	720	8500	980	7400	850	6800	775	9500	1125
N	7500	840	9200	1050	8450	920	9200	980	8800	1020
P	6400	780	8800	1020	7800	890	8750	1010	9750	1250
Q	8100	950	9500	1240	8700	980	9700	1200	8950	995
R	7800	870	7600	940	9800	1350	7600	945	7990	885

 

1. Combining the states P and Q together in 1998, what is the percentage of the candidates

qualified to that of the candidates appeared?

(a) 10.87% 

(b) 11.49%

(c) 12.35%

(d) 12.54%

(e)13.05%

 

2. The percentage of the total number of qualified candidates to the total number of

appeared candidates among all the five states in 1999 is

(a) 11.49%

(b) 11.84%

(c)12.21%

(d)12.57%

(e)12.73

 

3.What is the percentage of candidates qualified from State N for all the years together

over the candidates appeared from State N during all the years together ?

(a) 12.36%

(b) 12.16%

(c) 11.47%

(d) 11.15%

(e) None of these

 

4. What is the average of candidates who appeared from State Q during the given years?

(a) 8700

(b) 8760

(c) 88100

(d) 8920

(e) 8990

 

5.In which of the given years the number of candidates appeared from State P has maximum percentage of qualified candidates ?

(a) 1997

(b) 1998

(c) 1999

(d) 2000

(e) 2001

 

6.Total number of candidates qualified from all the states together in 1997 is approximately what percentage of the total number of candidates qualified from all the states together in 1998?

(a) 72%

(b) 77%

(c) 80%

(d) 83%

(e) 86%

 

Sol. 1. (c) Required Percentage [(1020 +1240) /(8800+ 9500) ]x 100 %

(8800 9500) 18300

= 12.35%

 

2. (b) Required Percentage[ (850+920 +890 +980+1350)/ (7400 + 8450 + 7800+8700 + 9800)]x100 % = 11.84%.

 

3. (d) . Required Percentage  [(840+1050+920+980+ 1020)/ (7500 + 9200 + 8450 9200 + 8800)

] x100 %= 11.15%.

 

4. (e) Required average =[(8100+9500 + 8700+9700+8950)/5]= 8990.

 

5. (e) The percentages of candidates qualified to candidates appeared from State P during different years are

 

For 1997 =[(780/6400)]×100% = 12.19%.

 

For 1998 =[(1020/8800)]×100% = 11.59%.

 

For 1999 =[(890/7800)]×100% = 11.41%.

 

For 2000 =[(1010/8750)]×100% = 11.54%.

 

For 2001= [(1250/9750)]×100% = 12.82%.

 

Maximum percentage is for the year 2001

 

6.       (c) Required Percentage =[ (720+840+ 780+950+870)/(980+1050 + 1020 + 1240+ 940)] x 100 %= 79.54% (Appx.80%)

4. Study the following table carefully and answer the questions given below

(Bank PO. 2001)

Classification of 100 students based on the marks obtained by them in Physics and Chemistry in an examination. 

Marks out of 50          Subject	40 and above	30 and above	20 and above	10 and above	0 and above
Physics	9	32	80	92	100
Chemistry	4	21	66	81	100
Average(Aggregate)	7	27	73	87	100

 1. The number of students scoring less than 40% marks in aggregate is

(a) 13

 (b) 19

(c) 20

(d) 27

(e) 34

2. If at least 60% marks in Physics are required for pursuing higher studies in Physics, how many students will be eligible to pursue higher studies in Physics

(a) 27

(b) 32

(c) 34

(d 41

(e) 68

3. What is the difference between the number of students passed with 30 as cut-off marks in Chemistry and those passed with 30 as cut-off marks in aggregate

(a )3

(b) 4

(c) 5

(d) 6

(e)7

4. The percentage of the number of students getting at least 60% marks in Chemistry over those getting at least 40% marks in aggregate, is approximately:

(a) 21%

(b) 27%

(c) 29%

(d) 31%

(e) 34%

 5. If it is known that at least 23 students were eligible for a Symposium on Chemistry, the minimum qualifying marks in Chemistry for eligibility to Symposium would lie in the range

(a) 40-50

(b) 30-40

(c) 20-300

(d) Below 20

(e) Cannot be determined

 

1. (d) We have 40% of 50 = (40/100)×50=20

Required number = Number of students scoring less than 20 marks in aggregate.

= 100 -  number of students scoring 20 and above marks in aggregate = 100 - 73 = 27.

 2. (b): We have 60% of 50 =(60/100)X 50 = 30

Required number = Number of students scoring 30 and above marks in Physics = 32.

3. (d) Required difference = (Number of students scoring 30 and above marks in Chemistry) - (Number of students scoring 30 and above marks in aggregate)= 27 -21 = 6.

4. (c) Number of students getting at least 60% marks in Chemistry = Number of students getting 30 and above marks in Chemistry = 21.

Number of students getting at least 40% marks in aggregate = Number of students getting 20 and above marks in aggregate = 73.

Required Percentage =(21/73) x 100 %= 28.77% (Appx. 29%.)

5. (c)Since 66 students get 20 and above marks in Chemistry and out of these 21 students get 30 and above marks, therefore to select top 35 students in Chemistry, the qualifying marks should lie in the range 20-30.