Look at this series: 3, 4, 7, 8, 11, 12, ... What number should come next?
A. 7 B. 10
C. 14 D. 15

• let it be x.
  so (1/27)/x=(5/9)/(3/11)
  
  solve it x=1/55.so ratio is 1/55
• 11 years agoHelpfull: Yes(3) No(0)
• D.15
  +1,+3,+1,+3,+1 so next one is +3 that means 12+3=15
• 9 years agoHelpfull: Yes(1) No(0)
• let the fraction be x: then by following the question e have
  x/(1/27)=(3/11)/(5/9).
  by solving the equation we get the answer as 1/55.
• 11 years agoHelpfull: Yes(0) No(0)
• ans is 15
  the series continues in the manner add 1 then adding 3
• 7 years agoHelpfull: Yes(0) No(0)