In a class , except 18 all are above 50 years. 15 are below 50 years of age. how many people are there
a) 30 b) 33 c) 36 d) none of these.

• ans s none of these:
  
  let's total students=x;
  
  above 50 are=x-18;
  
  below 50 are=15;
  
  but already 18 are below fifty;
  
  so 3 have exactly 50 years;
  
  but we cannot find total people data
• 11 years agoHelpfull: Yes(20) No(0)
• Ans: 33
  
  let x be the total no. of people
  
  above 50 are (x-18)
  also 15 are belowe %0 yrs of age.
  
  therefore, (x-18)=15
  x=33
• 10 years agoHelpfull: Yes(1) No(9)
• 
  just add 18+15=33
  so ans iz=33
  
• 7 years agoHelpfull: Yes(0) No(3)