A) 3
B) 9
C) 2
D) 7
Correct Answer: A
Solution :
[a] Let the numbers be 3x and 4x. According to the questions, \[\frac{3x+3}{4x+3}=\frac{4}{5}\] \[\Rightarrow \] \[5\,(3x+3)=4\,(4x+3)\] \[\Rightarrow \] \[15x+15=16x+12\] \[\therefore \] \[x=15-12=3\] \[\therefore \]Difference between the numbers \[=(4x-3x)\]\[\Rightarrow \]\[x=3\] |
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