A) 3
B) 5
C) 7
D) 11
Correct Answer: C
Solution :
Let the two numbers are x and y, then by hypothesis, \[x+y=25\] and \[xy=144\] \[\therefore \] \[{{(x-y)}^{2}}={{(x+y)}^{2}}-4xy\] \[={{(25)}^{2}}-4\times 144\] \[=625-576=49\] Hence \[x-y=7\]
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