April 2014



Earth Global warming: A new NASA study shows Earth's climate likely will continue to warm during this century on track with previous estimates, despite the recent slowdown in the rate of global warming. Read more ....

Cosmic microwave background cosmic inflation: Almost 14 billion years ago, the universe we inhabit burst into existence in an extraordinary event that initiated the Big Bang. In the first fleeting fraction of a second, the universe expanded exponentially, stretching far beyond the view of today's best telescopes. All this, of course, has just been theory. Read more ....

Robotic fish Soft robots: Soft robots - which don't just have soft exteriors but are also powered by fluid flowing through flexible channels - have become a sufficiently popular research topic that they now have their own journal, Soft Robotics. In the first issue of that journal, MIT researchers report the first self-contained autonomous soft robot capable of rapid body motion: a "fish" that can execute an escape maneuver, convulsing its body to change direction in just a fraction of a second, or almost as quickly as a real fish can. Read more .....

Cartoon Cartoons and health: Researchers from the University of Southampton have shown that cartoons could be a beneficial way of educating patients and empowering them to cope better with their long term conditions. Read more ....

Razor clam Learning from animals: The Atlantic razor clam uses very little energy to burrow into undersea soil at high speed. Now a detailed insight into how the animal digs has led to the development of a robotic clam that can perform the same trick. Read more ....

Laurie Barge Life origin: How life arose from the toxic and inhospitable environment of our planet billions of years ago remains a deep mystery. Researchers have simulated the conditions of an early Earth in test tubes, even fashioning some of life's basic ingredients. But how those ingredients assembled into living cells, and how life was first able to generate energy, remain unknown. Read more ....




Solution

This one was simple and even I could solve it. Let us suppose that hereafter I have to play "x" games - and win them all - to increase the win percentage to 99.

So the total number of games I have played is: 134 + x.

The total number of games I have won is: 126 + x.

The win percentage is: 100 (126 + x) / (134 + x).

I want this win percentage to be 99.

Therefore, 100 (126 + x) / (134 + x) = 99.

So, 100 (126 + x) = 99 (134 + x).

So, 12600 + 100x = 13266 + 99x.

Therefore, x = 666.

Thus I have to play 666 games (and win them all) if I hope to achieve a win percentage of at least 99. That's a tall order!

Well, now I have lost another game. So, now the difference between the number of games played and number of games won is 9.

Let's say I have to play "x" number of games to take my win percentage to 99 while maintaining the difference of 9 throughout. Thus, I have to win x - 9 games.

The win percentage when I play x games and win x - 9 of them is: 100(x - 9)/x. This I want to be 99.

Therefore, 100(x - 9)/x = 99.

So, 100 (x - 9) = 99x. That means 100x - 900 = 99x, or x = 900.

So I have to play 900 games and win 891 of them. My word! Loss of just one game and I have to play 900 games to take my winning score to 99 per cent!



Some useful links for
your career:


  • Union Public Service Commission - www.upsc.gov.in
  • IIT-Kharagpur - www.iitkgp.ac.in
  • Indian Statistical Institute - www.isical.ac.in
  • Indian Institute of Technology Madras - www.iitm.ac.in
  • Indian Institute of Management, Ahmedabad - www.iimahd.ernet.in
  • Indian Institute of Mass Communication - www.iimc.nic.in
  • IIT Bombay - www.iitb.ac.in
  • Indian School of Mines, Dhanbad - www.ismdhanbad.ac.in
  • Birla Institute of Technology, Ranchi - www.bitmesra.ac.in
  • Central Institute of Fisheries Nautical and Engineering Training - www.cifnet.nic.in
  • Indian Institute of Information Technology, Allahabad (Deemed University) - www.iiita.ac.in
  • Central Marine Fisheries Research Institute, Kochi - www.cmfri.com
  • Tata Institute of Social Sciences, Mumbai - www.tiss.edu

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