A) 3
B) 5
C) 7
D) 11
Correct Answer: C
Solution :
Let two positive numbers are x and y. \[x+25\] \[xy=144\] \[\therefore \] \[x-y=\sqrt{{{(x+y)}^{2}}-4xy}\] \[=\sqrt{{{(25)}^{2}}-4\times 144}\] \[\,=\sqrt{625-576}\] \[=\sqrt{49}=7\]You need to login to perform this action.
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