Subject
Quantitative Aptitude
Topic
Percentage
A towel , when bleached was found to have lost 20% of its length and 10% of its breadth . The percentage of decrease in area is :
A towel , when bleached was found to have lost 20% of its length and 10% of its breadth . The percentage of decrease in area is :
ক)
10%খ)
10.08%গ)
20%ঘ)
28%Explanation
Suppose , a number is decreased by =x% and then again decreased by length =y% Then, net change ={−x−y+(xy/100)} % = 28%Related questions
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