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### Discussion :: Percentage

1.  A student multiplied a number by $$\frac { 3} { 5 }$$ instead of $$\frac { 5} { 3 }$$What is the percentage error in the calculation ?

2. A.

34%

B.
 44%
C.

54%

D.

64%

Then , error = $$\frac { 5} { 3 }$$ x $$\frac { 3} { 5 }$$ x = $$\frac { 16 } { 15 }$$x
Error % =  [ $$\frac { 16 } { 15 }$$ x $$\frac { 3} { 5 }$$ x 100 ] % =64%