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RADAR DI from 2018 Mains IBPS PO
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## Mohit Kumar is teaching live on Unacademy Plus

Mohit Kumar
M.Tech from IIT | SBI PO Qualified | 4 years of Teaching experience | Assistant Professor in MIT MUZAFFARPUR (Bihar Govt.)

U
Rk
2 right
There is err in question 2
Sir, is it wise to write down the Radar Data in a Tabular Format before starting to solve the DI? Or should I start interpreting and solving the DI from the Radar Data itself?
Mohit Kumar
7 months ago
While solving it for first time that is during practise you can write it down, later on you can solve it without making table
Riju Chatterji
7 months ago
Okay Sir. Thank you.
1. IBPS PO MAINS 2018 RADAR BASED DATA INTERPRETATION

2. Direction (1-3): Study the given graph given below and answer the following questions The graph given below shows the percentage of literates in three different villages in three years 70 60/ VILLAGE VILLAGE -20002008 2012

3. Q1. If population of A in 200o, 2008 and 2012 is in ratio 2 :3 :4 and average of literate in 2008, 2012 and 200o be 1410 then find population of village A in 2000. (a) 1700 (b) 2000 (c) 2100 (d) 1800 (e) 2200 70 60 VILLAGE VILLAGE 2000-2008 -+-2012

4. Q1. If population of A in 20oo, 2008 and 2012 is in ratio 2 3:4 and average of literate in 2008, 2012 and 200o be 1410 then find population of village A in 2000 (a) 1700 (b) 2000 (c) 2100 (d) 1800 (e) 2200 Let, population of A in 2000, 2008 and 2012 is 2a, 3a, 4a respectively. 70 60 VILLAGE VILLAGE 2000-2008 -+-2012

5. Q1. If population of A in 20oo, 2008 and 2012 is in ratio 2 3:4 and average of literate in 2008, 2012 and 200o be 1410 then find population of village A in 2000 (a) 1700 (b) 2000 (c) 2100 (d) 1800 (e) 2200 Let, population of A in 2000, 2008 and 2012 is 2 a, 3a, 4a respectively. 70 60 Literate population of A in 2000 = 40% of 2a = (2/5) * 2a = 4a/5. VILLAGE VILLAGE 2000-20082012

6. Q1. If population of A in 20oo, 2008 and 2012 is in ratio 2 3:4 and average of literate in 2008, 2012 and 200o be 1410 then find population of village A in 2000 (a) 1700 (b) 2000 (c) 2100 (d) 1800 (e) 2200 Let, population of A in 2000, 2008 and 2012 is 2 a, 3a, 4a respectively. 70 60 Literate population of A in 2000 = 40% of 2a = (2/5) * 2a = 4a/5. Literate population of A in 2008-50% of 3a-(1/2) * 3a-3a/2. VILLAGE VILLAGE 2000-2008 -+-2012

7. Q1. If population of A in 20oo, 2008 and 2012 is in ratio 2 3:4 and average of literate in 2008, 2012 and 200o be 1410 then find population of village A in 2000 (a) 1700 (b) 2000 (c) 2100 (d) 1800 (e) 2200 Let, population of A in 2000, 2008 and 2012 is 2 a, 3a, 4a respectively. 70 60 Literate population of A in 2000: 40% of 2a-(2/5) * 2a-4a/5. Literate population of A in 2008-50% of 3a-(1/2) * 3a-3a/2. Literate population of A in 2012-60% of 4a-(3/5) * 4a- 12a/5. VILLAGE VILLAGE 2000-20082012

8. Q1. If population of A in 20oo, 2008 and 2012 is in ratio 2 3:4 and average of literate in 2008, 2012 and 200o be 1410 then find population of village A in 2000 (a) 1700 (b) 2000 (c) 2100 (d) 1800 (e) 2200 Let, population of A in 2000, 2008 and 2012 is 2 a, 3a, 4a respectively. 70 60 Literate population of A in 2000: 40% of 2a-(2/5) * 2a-4a/5. Literate population of A in 2008-50% of 3a-(1/2) * 3a-3a/2. Literate population of A in 2012-60% of 4a-(3/5) * 4a- 12a/5. Average of literate of A in 2008, 2012 and 2000 (1/3) (4a/5+ 3a/2+ 12a/5) VILLAGE VILLAGE 2000-20082012

9. Q1. If population of A in 20oo, 2008 and 2012 is in ratio 2 3:4 and average of literate in 2008, 2012 and 200o be 1410 then find population of village A in 2000 (a) 1700 (b) 2000 (c) 2100 (d) 1800 (e) 2200 Let, population of A in 2000, 2008 and 2012 is 2 a, 3a, 4a respectively. 70 60 Literate population of A in 2000:40% of 2a = (2/5) * 2a = 4a/5. Literate population of A in 2008-50% of 3a-(1/2) * 3a-3a/2. Literate population of A in 2012-60% of 4a-(3/5) * 4a-12a/5. Average of literate of A in 2008, 2012 and 2000 (1/3)* (4a/5+ 3a/2+ 12a/5) (1/3)* (4a/5+ 3a/2+ 12a/5) 1410 ->8a/10+ 15a/10+ 24a/10 1410*3 VILLAGE VILLAGE 2000-20082012

10. Q1. If population of A in 20oo, 2008 and 2012 is in ratio 2 3:4 and average of literate in 2008, 2012 and 200o be 1410 then find population of village A in 2000 (a) 1700 (b) 2000 (c) 2100 (d) 1800 (e) 2200 Let, population of A in 2000, 2008 and 2012 is 2 a, 3a, 4a respectively. 70 60 Literate population of A in 2000:40% of 2a = (2/5) * 2a = 4a/5. Literate population of A in 2008-50% of 3a-(1/2) * 3a-3a/2. Literate population of A in 2012-60% of 4a-3/5) * 4a-12a/5. Average of literate of A in 2008, 2012 and 2000 (1/3) (4a/5+ 3a/2+ 12a/5) ATQ, (1/3)* (4a/5+ 3a/2+ 12a/5) 1410 8a/10+ 15a/10+ 24a/10 1410*3 a = 900 VILLAGE VILLAGE population of village A in 2000 = 2a-2*900 = 1800 2000-20082012

11. Q2. Population of village C continuously decreases from 200o to 2012 and it decreases by the same number in 2012 from 2008 as it decreased in 20o8 from 2000. If literate in C in 2008 and 2012 are same then population of C in 2012 is what percent less than population of C in 2ooo (a) 44 (2/7)% (b) 44 (3/7)96 (c) 41 (2/7)96 (d) 44 (4/9)% (e) 45 (4/9)96 70 60 VILLAGE VILLAGE 2000-20082012

12. Q2. Population of village C continuously decreases from 2000 to 2012 and it decreases by the same number in 2012 from 2008 as it decreased in 2oo8 from 2000. If literate in C in 2008 and 2012 are same then population of C in 2012 is what percent less than population of C in 2000 (a) 44 (2/7)% (b) 44 (3/7)% (c) 41 (2/7)% (d) 44 (4/9)% (e) 45 (4/9% Let, population of village C in 2000, 2008, 2012 be (x+ 2n), (x+n) and x respectively 70 60 VILLAGE VILLAGE 2000-2008 -+-2012

13. Q2. Population of village C continuously decreases from 2000 to 2012 and it decreases by the same number in 2012 from 2008 as it decreased in 2oo8 from 2000. If literate in C in 2008 and 2012 are same then population of C in 2012 is what percent less than population of C in 2000 (a) 44 (2/7)% (b) 44 (3/7)% (c) 41 (2/7)% (d) 44 (4/9)% (e) 45 (4/9% Let, population of village C in 2000, 2008, 2012 be (x+ 2n), (x+n) and x respectively Literate population of village C in 2008 = 50% * (x+n) = ( 1/2) * (x+n) 70 60 VILLAGE VILLAGE 2000-2008 -+-2012

14. Q2. Population of village C continuously decreases from 2000 to 2012 and it decreases by the same number in 2012 from 2008 as it decreased in 2oo8 from 2000. If literate in C in 2008 and 2012 are same then population of C in 2012 is what percent less than population of C in 2000 (a) 44 (2/7)% (b) 44 (3/7)% (c) 41 (2/7)% (d) 44 (4/9)% (e) 45 (4/9% Let, population of village C in 2000, 2008, 2012 be (x+ 2n), (x+n) and x respectively Literate population of village C in 2008 = 50% * (x+n) = ( 1/2) * (x+n) Literate population of village C in 2012 = 70% * x = (7/10) x ATQ, 70 60 (1/2) *(xn) (7/10)x VILLAGE VILLAGE 2000-2008 -+-2012

15. Q2. Population of village C continuously decreases from 2000 to 2012 and it decreases by the same number in 2012 from 2008 as it decreased in 2oo8 from 2000. If literate in C in 2008 and 2012 are same then population of C in 2012 is what percent less than population of C in 2000 (a) 44 (2/7)% (b) 44 (3/7)% (c) 41 (2/7)% (d) 44 (4/9)% (e) 45 (4/9% Let, population of village C in 2000, 2008, 2012 be (x+ 2n), (x+n) and x respectively Literate population of village C in 2008 = 50% * (x+n) = ( 1/2) * (x+n) Literate population of village C in 2012 = 70% * x = (7/10) x ATQ, 70 60 (1/2) *(xn) (7/10)x 10x + 10n = 14x 10n 14x- 10x 10n- 4x n = (4/10)x = 2x/5 VILLAGE VILLAGE (x+2n)-X Required percentage (X+ 2n) 2000-2008 -+-2012

16. Q2. Population of village C continuously decreases from 200o to 2012 and it decreases by the same number in 2012 from 2008 as it decreased in 2008 from 20oo. If literate in C in 2008 and 2012 are same then population of C in 2012 is what percent less than population of C in 2000. (a) 44 (2/7)% (b) 44 (3/7)% (c) 41 (2/7)% (d) 44 (4/9)% (e) 45 (4/9% Let, population of village C in 2000, 2008,2012 be (x 2n), (x+n) and x respectively Literate population of village C in 2008 50% * (x+n) ( 1/2) * (x+n) Literate population of village C in 2012 = 70% * x = (7/10) x ATQ, 70 ( 1/2 ) * (x+n)= (7/10) x 10x 10n 14x 10n = 14x-10x 10n= 4x VILLAGE VILLAGE n = (4/10x = 2x/5 (x+ 2n) - x Required percentage 100% 2000-2008-2012 2n (x+211)_ x 100%

17. Q2. Population of village C continuously decreases from 200o to 2012 and it decreases by the same number in 2012 from 2008 as it decreased in 2008 from 20oo. If literate in C in 2008 and 2012 are same then population of C in 2012 is what percent less than population of C in 2000. (a) 44 (2/7)% (b) 44 (3/7)% (c) 41 (2/7)% (d) 44 (4/9)% (e) 45 (4/9% Let, population of village C in 2000, 2008,2012 be (x 2n), (x+n) and x respectively Literate population of village C in 2008-50% * (x+n)-( 1/2) * (x+n) Literate population of village C in 2012 = 70% * x = (7/10) x ATQ, 70 ( 1/2 ) * (x+n)= (7/10) x 10x + 10n = 14x 10n = 14x-10x 10n= 4x VILLAGE VILLAGE n = (4/10x = 2x/5 (x+ 2n) - x Required percentage 100% 2000-2008-2012 X+ 2n (x+4x/5)-x 100%

18. Q2. Population of village C continuously decreases from 200o to 2012 and it decreases by the same number in 2012 from 2008 as it decreased in 2008 from 20oo. If literate in C in 2008 and 2012 are same then population of C in 2012 is what percent less than population of C in 2000. (a) 44 (2/7)% (b) 44 (3/7)% (c) 41 (2/7)% (d) 44 (4/9)% (e) 45 (4/9% 70 10x + 10n = 14x 10n = 14x-10x 10n= 4x n = (4/10x 2x/5 Required percentage = = (x+ 2n) - x 100% 100% =-(x+4x75) X+ 2n VILLAGE VILLAGE 4115 (9x/5) x 100% s(4/9) 100% 2000-2008-2012

19. Q2. Population of village C continuously decreases from 200o to 2012 and it decreases by the same number in 2012 from 2008 as it decreased in 2008 from 20oo. If literate in C in 2008 and 2012 are same then population of C in 2012 is what percent less than population of C in 2000. (a) 44 (2/7)% (b) 44 (3/7)% (c) 41 (2/7)% (d) 44 (4/9)% (e) 45 (4/9% 70 10x + 10n = 14x 10n = 14x-10x 10n= 4x n = (4/10x 2x/5 Required percentage = = (x+ 2n) - x 100% 100% =-(x+4x75) X+ 2n VILLAGE VILLAGE 4115 (9x/5) x 100% s(4/9) 100% 2000-2008-2012 = 400/9 % = 44 (4/9)96

20. Q3. Sum of literate from village B in 2000 and 2008 is 1530 and sum of literates in 2008 and 2012 is 2010 If sum of literates from villages B in all the given years is 2490 then find population of village B in 2008 (a) 2625 (b) 2200 (c) 2000 (d) 2150 (e) 2050 Sum of literate from village B in 2000 and 2008-1530 70 60 VILLAGE VILLAGE 2000-2008 -+-2012

21. Q3. Sum of literate from village B in 2000 and 2008 is 1530 and sum of literates in 2008 and 2012 is 2010 If sum of literates from villages B in all the given years is 2490 then find population of village B in 2008 (a) 2625 (b) 2200 (c) 2000 (d) 2150 (e) 2050 Sum of literate from village B in 2000 and 2008-1530 Sum of literate from village B in 2008 and 2012 = 2010 Sum of literate from village B in all the given year 2490 70 60 VILLAGE VILLAGE 2000-2008 -+-2012

22. Q3. Sum of literate from village B in 2000 and 2008 is 1530 and sum of literates in 2008 and 2012 is 2010 If sum of literates from villages B in all the given years is 2490 then find population of village B in 2008 (a) 2625 (b) 2200 (c) 2000 (d) 2150 (e) 2050 Sum of literate from village B in 2000 and 2008-1530 Sum of literate from village B in 2008 and 2012 = 2010 Sum of literate from village B in all the given year 2490 70 60 So, literate population in 2008 (1530+2010) 2490 VILLAGE VILLAGE 2000-2008 -+-2012

23. Q3. Sum of literate from village B in 2000 and 2008 is 1530 and sum of literates in 2008 and 2012 is 2010 If sum of literates from villages B in all the given years is 2490 then find population of village B in 2008 (a) 2625 (b) 2200 (c) 2000 (d) 2150 (e) 2050 Sum of literate from village B in 2000 and 2008-1530 Sum of literate from village B in 2008 and 2012- 2010 Sum of literate from village B in all the given year 2490 70 60 So, literate population in 2008 (1530+2010) 2490 3540 2490 VILLAGE VILLAGE 2000-20082012

24. Q3. Sum of literate from village B in 2000 and 2008 is 1530 and sum of literates in 2008 and 2012 is 2010 If sum of literates from villages B in all the given years is 2490 then find population of village B in 2008 (a) 2625 (b) 2200 (c) 2000 (d) 2150 (e) 2050 Sum of literate from village B in 2000 and 2008-1530 Sum of literate from village B in 2008 and 2012- 2010 Sum of literate from village B in all the given year 2490 70 60 So, literate population in 2008 (1530+2010) 2490 3540 2490 1050 VILLAGE VILLAGE 2000-20082012

25. Q3. Sum of literate from village B in 2000 and 2008 is 1530 and sum of literates in 2008 and 2012 is 2010 If sum of literates from villages B in all the given years is 2490 then find population of village B in 2008 (a) 2625 (b) 2200 (c) 2000 (d) 2150 (e) 2050 Sum of literate from village B in 2000 and 2008-1530 Sum of literate from village B in 2008 and 2012- 2010 Sum of literate from village B in all the given year 2490 70 60 So, literate population in 2008 (1530+2010) 2490 = 3540-2490 = 1050 10 Let, the population of B in 2008 be x. So, 40% of: 1050 VILLAGE VILLAGE 2000-2008 -+-2012

26. Q3. Sum of literate from village B in 2000 and 2008 is 1530 and sum of literates in 2008 and 2012 is 2010 If sum of literates from villages B in all the given years is 2490 then find population of village B in 2008 (a) 2625 (b) 2200 (c) 2000 (d) 2150 (e) 2050 Sum of literate from village B in 2000 and 2008-1530 Sum of literate from village B in 2008 and 2012 = 2010 Sum of literate from village B in all the given year 2490 70 60 So, literate population in 2008 (1530+2010) 2490 3540 2490 = 1050 10 Let, the population of B in 2008 be x. So, 40% of x-1050 -(2/5) x 1050 VILLAGE VILLAGE 2000-20082012