Data Interpretation - Table Charts - Discussion
Discussion Forum : Table Charts - Table Chart 2 (Q.No. 1)
Directions to Solve
Study the following table and answer the questions.
Number of Candidates Appeared and Qualified in a Competitive Examination from Different States Over the Years.
| State | Year | |||||||||
| 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.
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?
Answer: Option
Explanation:
| Required percentage |
|
|||||||
|
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= 79.54%  80%. |
![]](/_files/images/data-interpretation/common/15-sym-cbracket-h1.gif)
Discussion:
17 comments Page 1 of 2.
Pankaj said:
1 decade ago
4160--------------4000
5230--------------5000
4000/5000*100=80%
5230--------------5000
4000/5000*100=80%
(7)
Komal said:
1 decade ago
please send me the fast calculation for (4160/5230*100) .
Raja rai said:
1 decade ago
4160*100/5230 = 79.541109 which is close to 80%.
ASHISH said:
1 decade ago
4160/5230 = 416/523.
100% = 523.
10% = 52.3.
70% = (50*7 + 2*7 +0.3*7).
= 350 + 14+ 2.1.
= 366.1.
So answer is greater than 70%.
80% = 50*8 + 2*8 + 0.3*8.
= 400 + 16 + 2.4.
= 418.4.
416 IS Little less than 418.4.
So answer is little less than 80%.
Thus 80% is correct approximation.
Do everything in mind .do not use pen and paper
You will be able to do it.
100% = 523.
10% = 52.3.
70% = (50*7 + 2*7 +0.3*7).
= 350 + 14+ 2.1.
= 366.1.
So answer is greater than 70%.
80% = 50*8 + 2*8 + 0.3*8.
= 400 + 16 + 2.4.
= 418.4.
416 IS Little less than 418.4.
So answer is little less than 80%.
Thus 80% is correct approximation.
Do everything in mind .do not use pen and paper
You will be able to do it.
(1)
Sumaya Zama said:
1 decade ago
We can easily calculate it by using @Rohit Agarwal sir's trick that is, Let us assume 4000 & 5000, the denominator is 5000 and what is 50% of 5000? its 2500 and we can split the numerator into 2500+1500 then it becomes 50%+...something,
Lets calculate the remaining part that is 1500 and what is 10% of 5000 its 500 then come to numerator and divide it into three parts that is 500+500+500 = 1500 that means 10%+10%+10%=30% then it becomes 30%and then add it to 50% which we got from 2500,
So we got 80% that means the answer is approx 80% because we are taking 4000 and 5000 instead of 4160 and 5230.
I hope this answer is sufficient. Thank you.
Lets calculate the remaining part that is 1500 and what is 10% of 5000 its 500 then come to numerator and divide it into three parts that is 500+500+500 = 1500 that means 10%+10%+10%=30% then it becomes 30%and then add it to 50% which we got from 2500,
So we got 80% that means the answer is approx 80% because we are taking 4000 and 5000 instead of 4160 and 5230.
I hope this answer is sufficient. Thank you.
Preeths said:
1 decade ago
Guys!
Easiest way to arrive at the answer would be :
= 4160 - rounded to 4000.
= 5230 - rounded to 5000.
= (4000*100) /5000.
= 400000/5000 = 400/5.
Which gives 80 as the answer.
Easiest way to arrive at the answer would be :
= 4160 - rounded to 4000.
= 5230 - rounded to 5000.
= (4000*100) /5000.
= 400000/5000 = 400/5.
Which gives 80 as the answer.
(15)
Asra said:
1 decade ago
Please send me simple calculation.
Anukriti srivastava said:
1 decade ago
Friends you give your expert sol but if we have done approximation and on one part of figure you have brought to its upper side, and other towards lower side as it is in this question.
And in answer figure one value of greater side of decimal being given other lower side after decimal then what will you choose then? Please help me out.
1699.99*299.88/59.8-1498+3745.
1.1900 2.11700 3.11000 4.10700 5.9800.
Though I can solve such type question, but they will consume much time. I want it to be done with speed as well as accuracy.
And in answer figure one value of greater side of decimal being given other lower side after decimal then what will you choose then? Please help me out.
1699.99*299.88/59.8-1498+3745.
1.1900 2.11700 3.11000 4.10700 5.9800.
Though I can solve such type question, but they will consume much time. I want it to be done with speed as well as accuracy.
(1)
Mudasir Sultan from DAVV indore SOE said:
10 years ago
Very useful tricks many special thanks sir I am a maths student but I was not in a position to solve table based questions but now I find these are simple if one follows your tricks again special thanks from the core of my heart. May God bless you all with the highest success.
(1)
Lucky said:
10 years ago
@Pankaj sir trick is too useful & now I can solve these questions easily.
(1)
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