7,4,6,3,4.5,1.5,2.25,-0.75

• 7-3=4; 4*(3/2)=6 ;
  6-3=3; 3*(3/2)=4.5;
  4.5-3=1.5; 1.5*(3/2)=2.25;
  2.25-3=-0.75; -0.75*(3/2)= -1.125
  Ans: -1.125 ;)
• 11 years agoHelpfull: Yes(77) No(5)
• 7-4,6-3,4.5-1.5,2.25-.75=-3
  6-2=4
  4.5-3=1.5
  2.25-1.5=.75
• 10 years agoHelpfull: Yes(6) No(8)
• 7-1=6
  4-1=3
  
  6-1.5=4.5
  3-1.5=1.5
  
  4.5-2.25=2.25
  1.5-2.25= -.75
• 9 years agoHelpfull: Yes(5) No(3)
• d)7,4, 6,3, 4.5,1.5, 2.25,?
  Ans: -0.75
  7-4=3
  6-3=3
  4.5-1.5=3
  2.25-3 =- 0.75
  
• 7 years agoHelpfull: Yes(4) No(2)
• d)7,4, 6,3, 4.5,1.5, 2.25,?
  Ans: -0.75
  7-4=3
  6-3=3
  4.5-1.5=3
  2.25-(-0.75)=3
  
• 8 years agoHelpfull: Yes(3) No(1)
• (7,4,) (6,3,) (4.5,1.5,) (2.25,-0.75)
  3 2 3 1.5 3 .75 3
  first series diff : 3, 3, 3, 3
  second series diff : 2, 1.5, .75
  so next will be .75/2=.375
  so .375 will added to -.075 so next no will be : -0.375
  
• 7 years agoHelpfull: Yes(2) No(0)
• 7-6=1 1/2=.5+1=1.5
  6-4.5=1.5 1.5/2=.75+1.5=2.25
  4.5-2.25=2.25 2.25/2=1.125+2.25=3.375
  2.25-(-1.125)=3.375
  
  ANS- (-1.125)
• 7 years agoHelpfull: Yes(1) No(0)
• @harish mukha u way is correct but u made silly mistake half of -0.75 is -0.32.5..so answer will be -0.75+(-0.32.5)=-1.125
• 7 years agoHelpfull: Yes(1) No(0)
• There is a simple way to solve this problem, Don't make it complicated.
  7-3=4
  6-3=3
  4.5-3=1.5
  2.25-3=-.75
• 7 years agoHelpfull: Yes(0) No(4)
• 7-1=6
  4-1=3
  6-1.5=4.5
  3-1.5=1.5
  4.5-2.25=2.25
  1.5-2.25=-0.75
  ????
  2.25-3.25=-1.0
  Ans:- -1.0
• 7 years agoHelpfull: Yes(0) No(2)
• 7-3=4, then keep the 4 aside and add half of 4 (i.e.,2) 4+2=6
  6-3=3, then keep the 3 aside and add half of 3(i.e.,1.5) 3+1.5 =4.5
  4.5-3=1.5, then keep the 1.5 aside and add half of 1.5(i.e.,0.75) 1.5+0.75 = 2.25
  2.25-3=-0.75, then keep the -0.75 aside and add half of -0.75(i.e.,0.32.5) -0.75+0.32.5=0.42.5
  
  correct me if am wrong
• 7 years agoHelpfull: Yes(0) No(1)