Subject
Quantitative Aptitude
Topic
Areas & Volumes
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)
18%খ)
28%গ)
38%ঘ)
48%Explanation
Let original length = x and original breadth = y. Decrease in area = xy - = (7/25)xy Decrease % = (7/25)xy * (1/xy) * 100 = 28%Related questions
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