How many natural numbers up to 200 are not divisible by either 2 or 5?

• 90
  divisible by 2= 100
  divisible by 5=20
  total cases= 100+20-10 (because subtract the intersection)
  =110
  
  Not divisible= total cases -110
  200-110 =90
  
• 8 years agoHelpfull: Yes(0) No(0)
• sorry i made a mistake
  divisible by 5=40
  100+40-20=120
  200-120=80
• 8 years agoHelpfull: Yes(0) No(0)