What a Turnaround: Solution

Well this is how I worked it out; do let me know if I have done it right.

Suppose, initially, the subscription fee was "x". After a 20 per cent reduction, the new subscription fee is 4x/5.

Suppose initially the number of members was "y", then the collection would have been xy.

There has been a 60 per cent increase in the collection amount. The new collection amount is therefore [xy + (60xy)/100] = (160xy)/100.

Number of members = Total collection / subscription fee. Therefore the number of members now = (160xy/100) / (4x/5) = 2y.

Initially, the number of members was "y" and now it is "2y". Therefore, the percentage increase = 100.

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