a number is selected from first 50 natural numbers. what is the probability that it is a multiple of 3 or 5 ?

• multiples of 3={3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48}
  multiples of 5={5,10,15,20,25,30,35,40,45,50}
  multiples of both 3&5 ={15,30,45}
  probability that it is multiple of 3 or 5 is 26-3=23/50
• 10 years agoHelpfull: Yes(6) No(1)
• probability=23c1/50c1=23/50=0.46
• 10 years agoHelpfull: Yes(2) No(0)
• .o6 calculated
• 9 years agoHelpfull: Yes(0) No(0)
• 23/50.....................
• 9 years agoHelpfull: Yes(0) No(0)
• p(3)=15,p(5)=10,p(3,5)=3,ans 15/50+10/50-3/50=22/50=11/25
• 8 years agoHelpfull: Yes(0) No(0)