What is the percent increase in the number of Executives recruited by organisation R in 2005 from the previous year? (Rounded off to two digits after decimal)

As per given graph , It is clear that Difference between the appeared candidates and qualified candidates in the zone S :
Hence required answer will be 2007 year , which is second lowest ( 270 ).

Number of candidates qualified in the years 2009 and 2010 together:
Zone = ( Number of candidates qualified in the year 2009 + Number of candidates qualified in the year 2010 ) × 100
Zone S: (11.4 + 5.2) × 100 = 16.6 × 100 = 1660
Zone T:: (6.9 + 9.4) × 100 = 16.3 × 100 = 1630
Hence , Zone T will be the second highest in the years 2009 and 2010 .

From above table , we have
Total number of Executives recruited by organisation U in the years 2007 and 2009 = 534 + 510 = 1044
Total number of Executives recruited by organisation P in the years 2007 and 2009 = 506 + 492 = 998
Required ratio = total number of Executives recruited by organisation U in the years 2007 and 2009 : the total number of Executives recruited by organisation P in the same years
Required ratio = 1044 : 998 = 522 : 499

From above table ,
Number of executives recruited by all given organisations
In year 2006 , P = 480 , Q = 495 , R = 464 , S = 508 , T = 488 , U = 518
In year 2006 , Total number of executives recruited by all the organisations = Sum of the number of executives recruited by all given organisations
= 480 + 495 + 464 + 508 + 488 + 518 = 2953
Hence total executives recruited were 2953.

From above table ,
Number of blue-coloured cars of Model E sold in Metro H = 37
Number of blue-coloured cars of Model D sold in Metro H = 43
Total number of blue-coloured cars of Model E and D sold in Metro H
i.e. Blue (E + D) = 37 + 43 = 80 = White (B).
Hence , The total number of blue-coloured cars of Model E and D sold in Metro H is exactly equal to the number of white-coloured cars of type B model in Metro M .