1/a - 1/b = 1/c where a,b,c are single digit number and b > a . Then we have to find how many values are possible for a,b,c as per the given conditions..?

• ans is 6 : (1,2), (2,3), (2,4), (2,6), (3,6), (4,8)
  you have to solve it manually.. there is no specific formula for this..
• 9 years agoHelpfull: Yes(9) No(1)
• b-a/ab=1/c---(1) b can take values as 2,3,4,5,6,7,8,9:a can have 1=>8 possibilities
  b can take values as 2,3,4: a can have 2=>3 possibilities
  b can take 2,3 :a can have 3=>2 possibilities.(the tricky part here is b*a=3*3=9 is the max value allowed(single digit) so a can take up ly 1,2,3 total 13 possible
• 9 years agoHelpfull: Yes(4) No(1)
• c=36
  b=8
  a=8
• 9 years agoHelpfull: Yes(0) No(4)
• c=36
  b=8
  a=8
• 9 years agoHelpfull: Yes(0) No(0)
• c=36
  b=8
  a=8
• 9 years agoHelpfull: Yes(0) No(0)
• c=36
  b=8
  a=8
• 9 years agoHelpfull: Yes(0) No(0)
• c=36
  b=8
  a=8
• 9 years agoHelpfull: Yes(0) No(2)
• Answer=10 because,when b=2,a=1,when b=3,a=1,2 when b=4,a=1,2 when b=5 a=1,similarl y for b=6,7,8,9 a=1 so total 10 different combination of a,b,c.
• 9 years agoHelpfull: Yes(0) No(0)
• tha ans wer is 3 sets possible as a=2,b=3,c=6;; a=1,b=2,c=2;;; a=2,b=4,c=4
  
• 9 years agoHelpfull: Yes(0) No(0)
• ans will be 8!
  
• 9 years agoHelpfull: Yes(0) No(0)
• 3 sets of solution..
  1/a-1/b=1c
  =>(b-a)/ab=1/c..where a,b and c should be single digit..
  b=2,a=1
  b=3,a=2
  b=4,a=2..
  for others c will be greater than 9..
• 9 years agoHelpfull: Yes(0) No(0)
• Kindly note , a b c are SINGLE DIGIT NUMBER and as they are different alphabets so they should have different values...
  Solving it manually i got 2 possible solutions...
  a=2 b=3 c=6
  AND
  a=2 b=6 c=3
• 9 years agoHelpfull: Yes(0) No(0)
• SOUMEN MAITY study first
• 8 years agoHelpfull: Yes(0) No(0)
• Ans will be 36.
  B>A.
  So B=9,then A=8,7,6,5,4,3,2,1-i.e. 8diffrnt values for c.
  Thus forB=8,7values for C.
  B=7,6values..so on upto B=2.
  When b=1thn a=0, c will be same as b. Tht case will nt be considered.
  So total possibl solutn.=8+7+6+5+4+3+2+1=36 sets.
• 8 years agoHelpfull: Yes(0) No(0)