A two-digit number is such that if the digit 4 is placed to its right, its value would increase by 490. Find the original number.(a) 48 (b) 54 (c) 64 (d) 56 Discussed by – Christy Varghese Click the below Amazon or Flipkart link to buy the bestseller general aptitude book “CSIR-NET General Aptitude-A NewContinue reading “CSIR-NET December 2019 Question – 1”