In a group of 15 workers, 5 are good at both Plumping and woodwork, 3 workers are good only at woodwork, and 3 are not good at either of them. How many of them are good at Plumping?

a) 7
b) 4
c) 5
d) 9

• Roy you are missing 5 are Gud at botH plumping and wood work......I think answer is 4 option b
• 8 years agoHelpfull: Yes(3) No(0)
• b is ans i. e. 4
  15-(5+3+3)=4
• 8 years agoHelpfull: Yes(3) No(2)
• 15-6=9
  option d is correct
  
  
• 8 years agoHelpfull: Yes(1) No(0)
• d)9 is the answer
  no of workers good at plumping = total no of workers - no of workers only good at woodwork -no of workers not good at anything
  = 15-3-3=9
  
• 8 years agoHelpfull: Yes(0) No(4)
• 4 workers are good at only plumbing
  if all are consider then 9 is the answer
• 8 years agoHelpfull: Yes(0) No(1)
• 9 will b ans.
• 8 years agoHelpfull: Yes(0) No(0)
• 5
  3=x+3-5
  3=x-2
  x=5
• 8 years agoHelpfull: Yes(0) No(0)
• 9 is the correct ans
• 8 years agoHelpfull: Yes(0) No(0)