The least number that must be subtracted from 63520
to make the result a perfect square, is:
(A) 16 (B) 20 (C) 24 (D) 30

• option b&d is not possible.
  option c also not possible.
  option a is correct
  because
  63520-16=63504 which is divisible by 16
  63504/16=3969 which is the square root of 63.
  so, option (a) is correct
• 10 years agoHelpfull: Yes(17) No(1)
• A) 16
  
  take sqrt of 63520 ...
  
  the remainder will be the answer
• 10 years agoHelpfull: Yes(11) No(3)
• (A)16
  252*252=63504
  63520-63504=16
• 10 years agoHelpfull: Yes(5) No(2)
• (A) 16
  from the options we can say that 16 is answer.
• 10 years agoHelpfull: Yes(3) No(2)
• a>:16
  
  divide 63520 pairing two digits from right
  we will get 16 as remainder
  
• 10 years agoHelpfull: Yes(2) No(1)
• ans 16....
• 10 years agoHelpfull: Yes(1) No(2)
• @sam dats gud answer..
  
• 10 years agoHelpfull: Yes(1) No(1)
• option b&d is not possible.
  option c also not possible.
  option a is correct
  because
  63520-16=63504 which is divisible by 16
  63504/16=3969 which is the square root of 63.
  so, option (a) is correct
• 9 years agoHelpfull: Yes(1) No(1)
• (252)^2=63504
  so 63520-16=63504....
• 10 years agoHelpfull: Yes(0) No(0)
• ans is 16...perfect sqr is63504
• 10 years agoHelpfull: Yes(0) No(0)