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How many committees of 5 members can be formed from 6 gentlemen and 4 ladies? (1) 120 (2) 252 (3) 10P5 (4) 10C5
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The sum of an even and an odd number is (a) Always even (b) Always odd (c) Sometimes odd and sometimes even (d) None of these
?Hundred years? war was fought between (1) France and Germany (2) England and France (3) Spain and Portugal (4) England and Germany
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(i)Who is the father of train engine concept. (ii)
Richter Scale is used to measure (1) Temperature of the body (2) Intensity of wind (3) Earthquakes (4) Ocean depth
The solution of the diferential equation cos x cos y dx + sin x sin y dy = 0 is (1) tan x = c (2) sec x ? sec y = c (3) sin x = c cos y (4) cos x = c sin y
No of cells in in chess board
2 Answers RRC Railway Recruitment Cell,
To demonstrate the phenomena of interference, we require (1) Two sources which emit radiation of the same frequency (2) Two sources which emit radiation of nearly the same frequency (3) Two sources which emit radiation of the same frequency and have a definite phase relationship (4) Two sources which emit radiation of different wavelengths
Which one of the following is not a natural source of energy? (1) Wood (2) Sun (3) Electricity (4) Coal
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