A) 5900
B) 5000
C) 5500
D) 5050
Correct Answer: B
Solution :
Let original number be x. \[\therefore \] \[\frac{90}{100}x\times \frac{110}{100}=x-50\] \[\Rightarrow \] \[\frac{99x}{100}=x-50\] \[\Rightarrow \] \[x-\frac{99x}{100}=50\]\[\Rightarrow \]\[\frac{x}{100}=50\]\[\Rightarrow \]\[x=5000\]You need to login to perform this action.
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