What are the values of X and Y in 72x23Y, if it is perfectly divisible by 88.
(a) X =1 y=5 (b) X =7 y=5
(c) X = 3 y=2 (d) X =7 y=2

• 88 is factor of 2 ,4 ,8, 11 ,88
  it cannot end with odd number so a and b is eliminated
  the number x2 should be divisible by 8 so 72 is divisible by 8
  answer is 727232
  
• 11 years agoHelpfull: Yes(14) No(2)
• 72X23Y wld b divisible by 8and 11 as well.
  so,Remainder of (23Y/8)wld b 0.=>Y=2.
  and 72X23Y wld b divisible by 11 if [(3+X+7)-(Y+2+2)]
  or [(3+X+7)-(2+2+2)] or (10+X-6) or (X+4)is divisible by 11.
  It is pssble wen X=11-4=7
  so,X=7,Y=2.Ans.Option (d)
• 11 years agoHelpfull: Yes(4) No(1)
• the co prime of 88 is 11 and 8
  hence last three digit should divide by 8. hence last digit should be 2
  then for divisibility of 11 0dd term - even term should be 0 or multiple of 11.
• 11 years agoHelpfull: Yes(3) No(0)
• The answer is option d(x=7 , y=2)
  the chances of y(8,6,4,2,0)
  so the chances are option "c" and "d"
  try with option c balance will be there
  so answer is option d
• 11 years agoHelpfull: Yes(1) No(0)
• To make it perfectly divisible by 88,
  we have to make it divisible by 11 and 8,
  so make it divisible by 8 last three digit should be divisible by 8, that's why y=2
  232 is divisible by 8,
  now to make divisible by 11
  11's divisibility rule =sum of all values at odd place -sum of all values at even place should be 0 or 11
  3+x+7-2+2+2
  so x=7
  answer is x=7,y=2
• 8 years agoHelpfull: Yes(1) No(0)
• the answer is x=7 and y=2
  the number 88 is the even number as we consider the choice we have option c and d having the even number 2 at the place of y . so after checking both of the options u can perfectly divide the number with 88 .
  
• 8 years agoHelpfull: Yes(0) No(0)
• (d)
  because 727232/88=8264
• 8 years agoHelpfull: Yes(0) No(0)
• (d) LAST 3 DIGIT NO TO DIVISIBLE BY 8 IS 232 SO Y IS 2 SUB ODD-EVEN GIVES VALUE OF X=7
• 7 years agoHelpfull: Yes(0) No(0)