. If x and y are two digits of number 653xy such that this number is divisible by 80, then x+y=? [IET] 1)3 2)2 3)6 4)4

• 80=10*8, means unit digit will be 0, because of the given no should divisible by 10. now no becomes 653x0.
  for given no. divisible by 8 , the last three digit should also divisible by 8. so 53x should divisible by 8. we get 6. so no becomes 65360 an x+y=6+0=6.
  Enjoy Buddy
• 9 years agoHelpfull: Yes(34) No(6)
• 653XY
  y should be 0..
  3x0 divided by 80..only when x=2..
  x+y=2 is answer
• 9 years agoHelpfull: Yes(15) No(21)
• 653xy is divisible by 80
  it means last digit should be 0
  so y=0
  653x0 should be divisible by 8 if x=6
  
• 9 years agoHelpfull: Yes(14) No(8)
• ans:6 where x=6 and y=0
• 9 years agoHelpfull: Yes(3) No(2)
• since 653xy is to be divisible by 80,the last number must be 0 i..e y=0
  now its nothing but divisibility by 8,if the last three digits are divisible by 8 then its done..now go for the options given and 2)2 satisfies. i..e last three digits 320 is divisible by 8..hence x=2 and y=0 answer = x+y=2
• 9 years agoHelpfull: Yes(3) No(1)
• ans:6
  65360 is divisible by 80 so x+y=6+0=6
• 9 years agoHelpfull: Yes(2) No(0)
• sorry prev ans was wrong
  its 6+0=6
  65360 / 80 = 817
• 9 years agoHelpfull: Yes(2) No(0)
• x+y=2+0=2......hence 2 is the answer
  b/c 65320 is perfectly divisible by 80
• 9 years agoHelpfull: Yes(1) No(4)
• since 635xy is divisible by 80, the value of y must be 0.
  and for a no to be divisible by 8 the last 3 digits of the no i.e here 35x must be divisible by 8
  so, 352 is divisible by 8.
  so x=2 and y=0
  x+y=2 (ans)
• 9 years agoHelpfull: Yes(1) No(2)
• 6+5+3 +x+y...is divisible by 80..take the l.c.m of 80....So The l.c.m is 2*5*8.....First take 2 and 5 ..so last no should be 0....y=0...6+5+3+x+0=14+x....is divisible by 80..Now take 8...the process for divisibility by 8 is last 3 digits should be divisible by 8..3,x,0...if we put 1..its 31 not divisible by 8..now put 2...its 320 which is divisible by 8 .thus x is 2 so....x+y=2+0=2 ans
  
• 7 years agoHelpfull: Yes(1) No(0)
• Ans: xy must devide with 80 so devide with 10&8 also like that...then last 2 digits must be 40 or 80...so checking options 4 is the ans
• 9 years agoHelpfull: Yes(0) No(0)
• 653xy is divisible by 80
  then it should be divisible by 8 and 10.
  from 8 division rule last 3 digits 3xy should be divisible by 8 and y is 0 because total number divisible by 10,it satisfies for x=2 or 6.
  so x+y=2 or 6.
• 9 years agoHelpfull: Yes(0) No(1)
• 65360 is perfectly divisible by 80 so x=6,y=0
  so x+y=6
  option 3 is correct
• 9 years agoHelpfull: Yes(0) No(1)
• 653xy is divisible by 80
  it means last digit should be 0
  so y=0
  653x0 should be divisible by 8 if x=6
  
• 9 years agoHelpfull: Yes(0) No(0)
• 653xy divisible by 80 then y=0
  653x0 divisible by 80 then x=2 or x=6
• 9 years agoHelpfull: Yes(0) No(0)
• 80 = 2 x 5 x 8
  
  Since 653xy is divisible by 2 and 5 both, so y = 0.
  
  Now, 653x is divisible by 8, so 13x should be divisible by 8.
  
  This happens when x = 6.
  
  x + y = (6 + 0) = 6.
  
• 7 years agoHelpfull: Yes(0) No(0)