A) \[\frac{7}{5}\]
B) \[\frac{3}{8}\]
C) \[\frac{8}{3}\]
D) \[\frac{8}{5}\]
Correct Answer: C
Solution :
\[ax+b=0\], (\[a,\,\,b\] having only \[1\] as the common factor). A made a mistake in copying \[b\] and got\[\frac{7}{3}\]. \[\therefore \] \[x=-\frac{b}{a}=\frac{7}{3}\] \[B\] made a mistake in copying \[a\] and got\[\frac{8}{5}\]. \[\therefore \] \[x=-\frac{b}{a}=\frac{8}{5}\] \[\therefore \] \[b=-8\] Hence correct root\[=-\frac{b}{a}=\frac{8}{3}\]You need to login to perform this action.
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