TCS
Company
Numerical Ability
Quadratic Equations
The least number that must be subtracted from 63520
to make the result a perfect square, is
Read Solution (Total 11)
-
- applying traditional method of finding sqrroot of a no we can see 16 is to be substracted from 63520 to have the sqr of 252 which is 63504
- 11 years agoHelpfull: Yes(8) No(1)
- To take last two digit.Maximum 4^2 only available.So answer 16.
- 11 years agoHelpfull: Yes(6) No(0)
- 16 is the ans
65025=255^2
63504=252^2
- 11 years agoHelpfull: Yes(3) No(1)
- 255^2=65025
252 which is 63504
63520-63504=16
- 11 years agoHelpfull: Yes(3) No(1)
- 255^2=65025 252^2=63504 ans is 16
- 11 years agoHelpfull: Yes(1) No(0)
- answer is 16
- 11 years agoHelpfull: Yes(1) No(0)
- Answer is 16.
- 11 years agoHelpfull: Yes(1) No(0)
- 1020 to make it sqr of 250
- 11 years agoHelpfull: Yes(1) No(3)
- 16 is the answer..as in previous comment the method explained
- 11 years agoHelpfull: Yes(0) No(0)
- (63504)^1/2=252 so,63520-63504=16
- 11 years agoHelpfull: Yes(0) No(0)
- 16 bcz 63520-16=63504 squre of 252
- 9 years agoHelpfull: Yes(0) No(0)
TCS Other Question