Find ?
3, ?, 50.5, 202.5, 810.5,.....
option
(1) 6
(2) 7.5
(3) 10.5
(4) 22.5
(5) 12.5

• multiply by 4 and add 0.5 to it (i.e 3*4 +0.5= 12.5)..
• 11 years agoHelpfull: Yes(1) No(0)
• ans: 12.5
  
  3,
  (3*4)+0.5=12.5
  (12.5*4)+0.5=50.5
  (50.5.5*4)+0.5=202.5
  (202.5*4)+0.5=810.5
• 11 years agoHelpfull: Yes(1) No(0)
• ans 12.5
  3*4+0.5=12.5
  12.5*4+0.5=50.5 etc...........
  
• 11 years agoHelpfull: Yes(0) No(0)
• 3*4+0.5=12.5
• 11 years agoHelpfull: Yes(0) No(0)
• 12.5
  On finding d of given AP:
  d= a*4 + 0.5
  so 3*4 + 0.5 =12.5
• 11 years agoHelpfull: Yes(0) No(0)
• ans (5)12.5
  (3*4)+.5=12.5
  (12.5*4)+.5=50.5
  (50.5*4)+.5=202.5
  (202.5*5)+.5=810.5
• 11 years agoHelpfull: Yes(0) No(0)
• 3*4+.5=12.5 ans
  b/c every time values are multiplied by 4 and adding .5 to them
  so 12.5*4+.5=50.5
  50.5*4+.5=202.5
  202.5*4+.5=810.5
• 11 years agoHelpfull: Yes(0) No(0)