Answer: C) 0 Explanation: Here there are combination of two series.  1) 9, 18, 36, 72, 144  2) 8, 6, 4, 2, 0   Therefore, The next number in the given series is 0.

Answer: A) Corona Explanation: The outermost layer of the sun is called The Corona.   The inner layers are the Core, Radiative Zone and Convection Zone. The outer layers are the Photosphere, the Chromosphere, the Transition Region and the Corona. IRIS will focus its investigation on the Chromosphere and Transition Region.

Answer: A) Thursday Explanation: Given monday population = 3000Per day 20% increase in population. Tuesday population = 3000 + 3000x20/100 = 3000 + 600 = 3600 Wednesday population =3600 + 3600x20/100 = 3600 + 720 = 4320 Thursday population = 4320 + 4320x20/100 = 4320 + 864 = 5184 So that day is Thursday.

Answer: A) 88 Explanation: Given,The ratio of the doctors to the nurses is 11 : 8Number of nurses = 8/19 x 209 = 88.

Answer: B) Electronegativity of an atom is it's ability to attract electrons during bond formation. Explanation: Electronegativity, is a chemical property that describes the tendency of an atom to attract a shared pair of electrons (or electron density) towards itself.

Answer: C) 3 Explanation: Assume the family has X girls and Y boys, according to the question,we can have 2 equations:X-1=Y, 2(Y-2)=X.Solve the equations, we get X=4, Y=3.

Answer: C) 11 Explanation: Given the company has 8 SD + 6 SRP + 7 IN = 21 cars + 'x' small cars.Given SD makes 1/4 th of the total fleet.=> 8 = 1/4 (21 + x)=> 32 = 21 + x=> x = 11 Therefore, the company has 11 small cars.