Answer: A) Abul Kalam Azad Explanation: India Wins Freedom is the autobiography of Abul Kalam Azad.

Answer: C) 60 years Explanation: Let the Present age of arun is xGokul's age = 5-2 = 3x-6/18 = 3x-6 = 54x = 60Arun's present age = 60 years

Answer: D) A check Explanation: Representative money is an item such as a token or piece of paper that has no intrinsic value but can be exchanged on demand for a commodity that does have intrinsic value, such as gold, silver, copper,...   Hence, a Check is an example of representative money.

Answer: C) Eubacteria Explanation: There are two kingdoms of bacteria. They are 1. Eubacteria  and  2. Archaea   The members of these two kingdoms appear similar in shape and appearance, even under the extreme magnification of the electron microscope . However, they are very different from each other in a number of molecular and biochemical aspects. It is these differences that have resulted in the microorganisms being grouped into separate kingdoms.   For example, eubacteria contain the rigid, stress-bearing network known as the peptidoglycan . The only exceptions are the bacteria from the genera Mycoplasma and Chlamydia. Archaebacteria do not contain peptidoglycan. Instead, they contain a different structure that is called pseudomurein.   The common bacteria belongs to Eubacteria kingdom.

Answer: B) Suzlon Energy Explanation: Suzlon energy has its corporate headquarter in Pune, Maharashtra with the name of “One Earth”. Spread over 10 acres of land, the structure is completely powered by renewable energy. One Earth has been certified as the LEED (Leadership in Energy and Environment Design) Platinum building. Suzlon is largest wind turbine manufacturer in India and third largest in world.

Answer: C) Mongolia Explanation: China shares land borders with 14 different countries, the longest being with Mongolia followed by Russia and then India.

Answer: B) 18 Explanation: Clearly total persons are increased in  28/35 :: 52/65 = 4:5. As time is inversely proportional to men, so total time will decrease in the ratio 5:4. Hence, 22.5 x 4/5 = 18 days.

Answer: A) 4 days Explanation: Given that  6 men and 8 boys can do a piece of work in 10 days  26 men and 48 boys can do the same in 2 days   As the work done is equal, 10(6M + 8B) = 2(26M + 48B) 60M + 80B = 52M + 96B => M = 2B => B = M/2 ……(1)   Now Put (1) in 15M + 20B => 15M + 10M = 25M Now, 6M + 8B in 10 days => (6M + 4M) 10 = 100M Then D(25M) = 100M => D = 4 days.