The product if 3 consecutive odd numbers is 531117. what is the sum of the numbers?

1) 183
2) 213
3) 243
4) 273

• this can be done using options
  let 3 digits be (x-2) , x , (x+2)
  (x-2)*(x)*(x+2)=531117
  (x^3)- 4x=531117
  now
  (x-2)+(x)+(x+2)=3x
  now from 1st option 3x=183 x=61 & 60*60*60=216000 not close
  now from 2nd option 3x=213 x=71 & 70*70*70=353000 not close
  now from 3rd option 3x=243 x=81 & 80*80*80=512000 close
  
  so put x=81 in (x^3)- 4x=81*81*81-4*81=531117
  
  so ANS= 3) 243
• 9 years agoHelpfull: Yes(0) No(2)