A student multiplied a number by 3/5 instead of 5/3.
What is the percentage error in the calculation?
Choose the correct answer.
A) 34% B) 44% C) 54% D) 64% E) None
Let the number be x   Then error = 5/3x - 3/5x = 16/15x   Error%= (16x/15 x 3/5x x 100)% = 64%   Answer: Option 64%
<result>D</result>
A student multiplied a number by 3/5 instead of 5/3.
What is the percentage error in the calculation?