8,.5,16,4,15,.3,50,4.5,6,.2,30

• 8,.5,16,4,15,.3,50,4.5,6,.2,30.x
  (8,.5,16,4),(15,.3,50,4.5),(6,.2,30.x)
  
  in each of three group
  3rd no.= 1st/2nd & 4th no.= 1st*2nd
  
  8/.5 = 16 , 8*.5 = 4
  15/.3 = 50 , 15*.3 = 4.5
  6/.2 = 30 , 6* .2 = x =======> x = 1.2
  
• 10 years agoHelpfull: Yes(63) No(0)
• (8,.5,16,4),(15,.3,50,4.5),(6,.2,30,x)
  8/.5====>16
  8*.5====>4
  
  15/.3====>5.0
  15*.3====>4.5
  
  6/.2=====>30
  6*.2=====>1.2
  
  ans:1.2
• 10 years agoHelpfull: Yes(2) No(0)
• 8,.5,16,4,15,.3,50,4.5,6,.2,30.x
  (8,.5,16,4),(15,.3,50,4.5),(6,.2,30.x)
  
  in each of three group
  3rd no.= 1st/2nd & 4th no.= 1st*2nd
  
  8/.5 = 16 , 8*.5 = 4
  15/.3 = 50 , 15*.3 = 4.5
  6/.2 = 30 , 6* .2 = x so... x = 1.2
• 9 years agoHelpfull: Yes(0) No(0)
• ans128 0544th no15 03458th no6 021212th no
• 9 years agoHelpfull: Yes(0) No(0)