Look at this series: 1.5, 2.3, 3.1, 3.9, ... What number should come next?
4.2
4.4
4.7
5.1

• 1.5, 2.3, 3.1, 3.9, ...
  
  4.7 should be next number.
  series is 0.7 +0.8*n where n=1,2,3,4,5,6...
• 13 years agoHelpfull: Yes(2) No(0)
• 4.7
  Difference between the given no is 0.8 so add 0.8 +3.9= 4.7
• 6 years agoHelpfull: Yes(0) No(0)
• As we can observe from the series that there is a common difference of 0.8.
  1.5 + 0.8 =2.3
  2.3 + 0.8 =3.1
  3.1 + 0.8 =3.9
  3.9 + 0.8 =4.7
  
  Hence 4.7 is the correct answer.
• 6 years agoHelpfull: Yes(0) No(0)