Study the following table carefully and answer the given question. Number of Candidates Appearing For Interview for a post of Assistant Engineer in Various PSU’s PSU Appeared Candidates % of Qualifying Candidates ECIL 150 20% NPCIL 300 17% CIL 125 40% NHPC 150 36% EIL 140 56%   The Ratio of number of Candidates who did not qualify in NHPC and number of Candidates who did not Qualify in NPCIL respectively is:?

Option 4 : 32 : 83

Calculation:

The number of candidates who appeared in an Interview for NHPC = 150

% of qualifying candidates for NHPC = 36%

The number of candidates qualifies for the Interview in NHPC = (36/100) × 150

⇒ 54

The number of candidates who did not qualify for the Interview in NHPC = 150 - 54

⇒ 96

The number of candidates who appeared in an Interview for NPCIL = 300

% of qualifying candidates for NPCIL = 17%

The number of candidates qualifies for the Interview in NPCIL = (17/100) × 300

⇒ 51

The number of candidates who did not qualify for the Interview in NPCIL = 300 - 51

⇒ 249

Now,

The Ratio of number of Candidates who did not qualify in NHPC and number of Candidates who did not Qualify in NPCIL = 96 : 249 = 32 : 83

Therefore, the correct answer is 32 : 83.