Square of 2 more than a 2 digit number is multiplied and % by 2 and 5 respectively. if twice of the result is equal to 500 then find the number.
a) 45
b) 23
c) 87
d)47

• 2((x+2)^2*2%5)=500
  (x+2)^2*2%5=250
  x+2=25
  x=23
• 11 years agoHelpfull: Yes(9) No(5)
• given, 2((x+2)^2*2%5)=500
  =>(x+2)^2*2%5=250
  =>(x+2)^2*0.4=250
  =>(x+2)^2=625
  =>(x+2)^2=25^2
  =>x=23
• 11 years agoHelpfull: Yes(9) No(0)
• its 23
  2[(x+2)^2*2%5]=500
  
  
• 11 years agoHelpfull: Yes(2) No(4)
• just come in reverse
  twice of the result = 500
  the result = 250
  5*250 = 1250
  1250/2 = 625
  squareroot of 625 = 25
  25-2 = 23
  23 is answer
• 5 years agoHelpfull: Yes(1) No(0)
• 2((x+2)^2*2%5)=500
  
  (x+2)^2*2%5=250
  
  x+2=25
  
  x=23
• 4 years agoHelpfull: Yes(0) No(0)