Question
If the length of a rectangle is extended by 25% and its
width is reduced by 20%, what is the percentage difference in the rectangle's area as a result of these changes?Solution
Let length and breadth of the rectangle be 'x' and 'y' cm, respectively. Area of rectangle = xy cm2 Increased length = 1.25x cm Decreased breadth = 0.8y cm New area of rectangle = 1.25x X 0.8y = xy cm2 Percentage change in area = [(xy - xy) /xy] X 100 = 0% Hence, option e.
Hardness of water is due to the presence of salts of
Which viral disease affects carp species and is caused by Rhabdovirus carpio (RVC)?
Indian Council of Agricultural Research was established in the year
Which insect is commonly known as the Pink Bollworm, a major pest of cotton?
Which process is primarily involved in the synthesis of a complementary RNA strand from a DNA template?
It is a systemic insecticide-
Which one of the following is not a mode of action of biocontrol agents?
Rating is the process of which crop?
H+-ATPases of plasma membrane and tonoplast are
High water use efficiency Â
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