the rate of failure of candidate is 39.25%.find atleast total number of candidate appear in examination

• Ans. 400 candidates
  
  Candidates cannot be in fractions. So we have to multiply 39.25 by 4 to make it 157 which is a whole number.
  As the rate of failure is 39.25%. Then out of 400 candidates 157 candidates will fail.
• 13 years agoHelpfull: Yes(41) No(19)
• No of total appeared = x, no of failure= y
  so (y/x)*100 = 39.25
  we want least value of x
  so let assume value of y=3925 =>x=10000
  now to find least value factorizes y(by 5)
  y=785=>x=2000
  y=157=>x=400
  x=400 is ans
• 9 years agoHelpfull: Yes(4) No(1)