Answer: C) 200 mts Explanation: Let the length of the train be 'L' mts let the speed of the train be 'S' m/s Given it crosses a pole in 10 sec=> L/S = 10 ......(1)Given it takes 20 sec (double of pole) to cross a platform of length 200 mts => (L + 200)/S = 20 => L/S + 200/S = 20 But from (1) L/S = 10 => 200/S = 20 - 10 => S = 20 m/s Then, from (1) => L = 10 x 20 = 200 mts. Hence, the length of the train = 200 mts.

Answer: B) World's Oldest Man Explanation:

Answer: D) Madhya Pradesh Explanation: Madhya Pradesh has won the 'Best Tourism State' national award for the third consecutive year. President Ram Nath Kovind handed over the award, named as 'Hall of Fame Award', to Minister of State for Tourism Surendra Patwa at a ceremony held at Vigyan Bhawan in New Delhi.

Answer: A) CrCl3 Explanation: Colored aqueous solutions are a characteristic of transition compounds. The only transition compound in the above choices is CrCl3. Cr is a transition element.

Answer: D) Big data for big impact Explanation: The World Telecommunication and Information Society Day (WTISD) is observed every year on May 17 to mark the anniversary of the signing of the first International Telegraph Convention (ITC) and the creation of the International Telecommunication Union (ITU). The purpose of the day is to help raise awareness of the possibilities that the use of the Internet and other information and communication technologies (ICT) can bring to societies and economies, as well as of ways to bridge the digital divide. The 2017 theme “Big Data for Big Impact” focuses on the power of Big Data for development and aims to explore how to turn imperfect, complex, often unstructured data into actionable information in a development context.

Answer: A) Symantec Corp Explanation:

The first written story that has come down to us is The Epic of Gilgamesh. It is a mythologized account of a historical figure, Gilgamesh, a ruler of the Sumerian city-state of Uruk, believed to have ruled sometime between 2700-2500 BC.

Add the letter 'G' to the word 'ONE' and it become's 'Gone' which means disappear.