If the length and width of a rectangule garden plot were each increased by 20% , what would be the percent increase in the area of plot ?
20%
24%
36%
40%
44%
Description (বিবরণ) :
প্রশ্ন: If the length and width of a rectangule garden plot were each increased by 20% , what would be the percent increase in the area of plot ?
ব্যাখ্যা:
Let, Length of rectangle garden x and width of rectangle garden y.
area = xy
New length = x + 20/100x = 1.2x
New width = y + 20/100 y = 1.2y
New area = 1.2x × 1.2y = 1.44xy
% increase in area = 1.44xy - xy /xy ×100% = 44%
Related Question
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