Answer: D) 7:3 Explanation: Ratio of Milk and water in a vessel A is 4 : 1   Ratio of Milk and water in a vessel B is 3 : 2   Ratio of only milk in vessel A = 4 : 5   Ratio of only milk in vessel B = 3 : 5   Let 'x' be the quantity of milk in vessel C   Now as equal quantities are taken out from both vessels A & B   => 4/5     :     3/5               x   3/5-x          x - 4/5   => 35-xx-45 = 11 (equal quantities)   => x = 7/10   Therefore, quantity of milk in vessel C  = 7   => Water quantity = 10 - 7 = 3   Hence the ratio of milk & water in vessel 3 is 7 : 3

Answer: B) human body Explanation: Enzymes play an essential role in each living cell of our body. Enzymes are globular proteins that control biological reactions. These are of two types. 1. Intracellular enzymes 2. Extracellular enzymes   Intracellular enzymes are found inside the cell. Extracellular enzymes act outside the cell.   Enzymes are produced by exocrine glands. Digestive enzymes of diverse specificities are secreted by the salivary glands, stomach, pancreas, and the small intestine.

The Holocaust, also referred to as the Shoah,[b] was a genocide during World War II in which Nazi Germany, aided by its collaborators, systematically murdered approximately 6 million European Jews, around two-thirds of the Jewish population of Europe, between 1941 and 1945. The Holocaust originated in Nazi Germany in the late 1930s and eventually spread throughout Central and Eastern Europe into countries invaded and occupied by Germany during World War II. The Nazis were racists and believed their race was more important. Nazis believed that the jews were a problem. Many of the non-germans that were living on the land were sent to concentration camps. The main place it took place was eastern Germany and Poland. The Holocaust was largely comprised of a vast network of concentration camps in countries including Germany, Poland, Austria, Ukraine, Norway, the Czech Republic, Slovakia, Belarus, the Netherlands, and France.

Answer: D) 38 Explanation: Let no. of boys be 'B' and no. of girls be 'G' Here from given data, B + G = 1650 .....(1) B - G = 400 .....(2) From (1) & (2), we get 2B = 2050 => B = 1025 => G = 1650 - 1025 = 625 Hence, the % of girls = 625 x 100/1650 => 38% (approx).

From given data, (C.P. of 17 balls) - (S.P. of 17 balls) = (C.P. of 5 balls) C.P. of 12 balls = S.P. of 17 balls = Rs.720. Hence, C.P. of 1 ball = Rs.720/12 = Rs. 60.

Answer: D) Rs. 112.5 Explanation: Manju borrows Rs. 5000 for 2 years at 4% p.a. simple interest  She also lends it at 6 1⁄4% p.a for 2 years  => Total Gain = 6 1/4% − 4% = 2 1/4% So her gain in the transaction for 1 year = The simple interest she gets for Rs.5000 for 1 year at 2 1⁄4% per annum = PTR100=5000×94×1100 = Rs. 112.5/ year.

Answer: B) INS Sarvekshak Explanation: Indian Navy’s survey vessel INS Sarvekshak has become the India’s first warship to install solar power system on board. The solar power system works on sunlight and hence is 100% per cent reliable for power source that can be used for communication equipment, battery charging and general lightings onboard round the clock with battery outputs during night. The system is maintenance free.

Answer: C) Google Explanation: 1. In the latest Global 500 rankings of most valuable and powerful brands across the globe, Sundar Pichai’s Google has surpassed Apple to achieve the top position.2. The Brand Finance Global 500 list published on February 2, 2017 had featured Apple as the top brand for continuous five years.3. However, for 2017, the ranking revealed that Google’s brand value rose by 24 percent to $109.5bn in 2016. The brand value of Apple on the other hand dropped 27 percent to $107bn.4. This is for the first time since 2011 that Google has been placed at the top spot. The third place has been occupied by Amazon.5. The ranking is based upon factors such as marketing investment, familiarity, loyalty, staff satisfaction and corporate reputation.