Answer: B) 7! x 6! Explanation: The students should sit in between two teachers. There are 7 gaps in between teachers when they sit in a roundtable. This can be done in 7P6ways. 7 teachers can sit in (7-1)! ways.    Required no.of ways is = 7P6.6! = 7!.6!

Answer: A) Prices do not reflect the full social cost of production Explanation: Prices do not reflect the full social cost of production is an example of Market failure.   A market failure occurs when the supply of a good or service is insufficient to meet demand. This results in an inefficient distribution of resources among market participants. It also occurs if externalities are not accounted for. If a firm fails to maximize its profits this is not a general market failure.

Answer: A) with States Explanation: Government can be classified in three manners: (1) who participates, (2) geographic distribution of power, and (3) legislative/executive relationship.   Who can participate is generally broken down into two forms of government, democracy or dictatorship   While the legislative/executive relationship is broken down into presidential or parliamentary   The geographic distribution of power is broken down into unitary, federal, and confederation (confederal). Confederal System of Government :: A system of government where power is located with the independent states and there is little power in the central government.   Today, no nation follows a confederal system. Organizations, like the European Union and the Commonwealth of Independent States, are based on the ideas of a confederal system. Several nations make up these organizations, but they still retain the majority of their independence.

Answer: B) 11.9 hrs Explanation: We know that Time = Distance/speedRequired time = (10 1/4)/2 + (10 1/4)/6 = 41/8 + 41/6= 287/24 = 11.9 hours.

Answer: C) 11/18 Explanation: Let the total number of workers be x. Then,    Number of women = x/3 and number of men = x - x/3  = 2x/3   Number of women having children = x/18   Number of men having children = x/3   Number of workers having children = (x/18) + (x/3) = 7x/18    Therefore, workers having no children = x - 7x/18 = 11/18 of all workers.

Answer: C) gram Explanation: Gram is not a Plantation crop among the given options.   Plantation crops are known as cash crops. These crops are mostly grown at tropical and subtropical areas. These crops are grown for sale but not for local consumption. such crops include rubber, coffee, tea, various oil seeds, sugar cane,etc. So, Gram is not a plantation crop.

Answer: C) 9 Explanation: Given   6 = 3 => Number of letters in SIX = 3   12 = 6 => Number of letters in TWELVE = 6   14 = 8 => Number of letters in FOURTEEN = 8   Similarly,   22 = 9 => Number of letters in TWENTY TWO = 9           Therefore, 22 = 9.

Answer: B) Giraffe Explanation: Giraffe has the highest blood pressure among animals.  This is due to the fact that there is a large pressure drop (~100 mmhg) as the blood is transported from the heart, up the neck, to the brain. This is about twice the normal blood pressure of humans (120/80 mmhg).