February 2013

Upside-down number plate

Number plate

While going through Shakuntala Devi's book on puzzles, I came across one which I liked very much. In fact, all the puzzles are good but I liked this particular one for the simple reason that it is the only one which I could solve - and that too after a lot of efforts.

Let me state it in my own way. I got to see a vehicle which bore a characteristic number. The number was characteristic because it could be read clearly upside down also.

The registration number consisted of five digits (all of them different). Thus, the number was a five-digit one. When the number plate was fixed upside down, the number could still be read very clearly (of course, the number now was a different one from the original). Thirdly, when the number plate was fixed upside down and the new number was read, the new number was greater than the original number by 78633. What is the actual number?

Click here for the solution

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 Commission - 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

DISCLAIMER: The contents of this website are for informational purposes only. Although due care is taken, the correctness and accuracy cannot be guaranteed. The science and medical research articles are for informational purposes only, aimed at kindling an interest in science. They are not intended to provide any kind of advice.