Saturday, March 16, 2013

Percentage Q60


60. 
A student multiplied a number by
3
instead of
5
.
5
3
What is the percentage error in the calculation?
A.
34%
B.
44%
C.
54%
D.
64%

Answer: Option D
Explanation:
Let the number be x.
Then, error =
5
x -
3
x =
16
x.
3
5
15

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