Some birds are sitting in an oak tree. Ten more birds land. More birds arrive until there are a total of four times as many birds as the oak tree had after the ten landed. A nearby maple tree has sixteen fewer than twelve times as many birds as the oak tree had after the ten landed. If both trees now have the same number
of birds, how many birds were originally in the oak tree before the first 10 landed?
a)4 b) 7 c) 16 d) 24

• I think there is some mistake in given data . pls check.
  
  If initially x birds are there, then
  
  12(x+10)-16= 4*(x+10)
  
  8(x+10)=16
  x+10=2
  x=-8 which is not possible.
• 11 years agoHelpfull: Yes(29) No(0)
• mistake in que is that Some birds are sitting in an oak tree. Ten more birds land. More birds arrive until there are a total of four times as many birds as the oak tree had after the ten landed. A nearby maple tree has sixteen fewer than twelve times as many birds as the oak tree had BEFORE the ten landed. If both trees now have the same number(USE BEFORE INSTEAD OF AFTER)
  THEN THE CORRECT ANS IS 7
  
• 11 years agoHelpfull: Yes(11) No(0)
• ans is -8 which is not possible.
• 11 years agoHelpfull: Yes(4) No(4)