# A Student Multiplied a Number by 3 5 Instead of 5 3 . Find the Error Percentage. - Mathematics

MCQ

A student multiplied a number by 3/5 instead of 5/3. Find the error percentage.

• 34%

• 44%

• 54%

• 64%

#### Solution

64%
Explanation :
Let the number be x.

Then, error = 5/3x-3/5x=16/15x

Error percentage = ((16x)/15xx3/(5x)xx100)% = 64%

Concept: Percentage, Discount and Partnership (Entrance Exam)
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