What is the probability of a/b will be an integer when a=2x3y and b=2l3m and all of x, y, I, m are positive integers?

a. 1/6
b. 2/3
c. 1/2
d. 1/4
e. 3/4

• d.1/4
  There r 4 numbers to be filled i.e, x,y,l,m
  out of which only one condition satisfies to get a/b as integer
• 10 years agoHelpfull: Yes(13) No(8)
• a.1/6
  four no should be filled (1,2,3,4)
  possible ways (1.2/3.4,1.3/2.4,1.4/2.3,2.3/1.4,2.4/1.3,3.4/1.2)
  3.4/1.2 is only integer which satisfies the condition.
• 10 years agoHelpfull: Yes(5) No(2)
• Condition of integer to be satisfied by x=l and y=m.
  No.s of ways =10*10=100
  x and y are integers so no of ways= 10*10=100
  l and m are integers so no of ways =10*10=100
  So, x, y, l, m are integers no of ways=100*100=10000
  probability =100/10000=1/100
  Ans. None of these
• 10 years agoHelpfull: Yes(2) No(3)
• please give correct answer and solution
  
• 9 years agoHelpfull: Yes(2) No(0)
• 1/2 .. 100% sure..... don't say anything... by DL method........
• 9 years agoHelpfull: Yes(1) No(1)
• Option c
  Since distance between new and old numbers are same.
• 6 years agoHelpfull: Yes(1) No(0)
• ans 2/3
• 10 years agoHelpfull: Yes(0) No(3)