Subject
Quantitative Aptitude
Topic
Percentage
In measuring the sides of a rectangle, one side is taken 20% in excess and the other 10% in deficit. Find the error per cent in area calculated from the measurement ?
In measuring the sides of a rectangle, one side is taken 20% in excess and the other 10% in deficit. Find the error per cent in area calculated from the measurement ?
ক)
8% excessখ)
9% deficitগ)
12% excessঘ)
11% deficitExplanation
Since Area of Rectangle = side1 x side2 Therefore, error% in area = % = [20 - 10 + ( -10 x 20)/100]% or 8% i.e. 8% excess.Related questions
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