A) 53
B) 72
C) 85
D) 86
Correct Answer: B
Solution :
Let the number be\[x\], A/Q, \[x=56+\frac{\frac{x}{3}+\frac{x}{4}+\frac{x}{12}}{3}\] \[\Rightarrow \]\[x=56+\frac{\frac{4x+3x+x}{12}}{3}\] \[\Rightarrow \]\[x=56+\frac{8x}{3\times 12}\] \[\Rightarrow \]\[x-\frac{2x}{9}=56\] \[\Rightarrow \]\[\frac{7x}{9}=56\] \[\therefore \]\[x=72\] Hence the number is 72.
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