Question
The length of a rectangle is extended by 26%, while its
width is reduced by 26%. What is the percentage change in the area of the rectangle as a result of these adjustments?Solution
Let length and breadth of rectangle initially be x cm and y cm respectively. Area of rectangle = xy cm2 Length after increase = 1.26x cm Breadth after decrease = 0.74y cm Area of rectangle now = 1.26x × 0.74y = 0.9324xy cm2 Decrease in area = xy – 0.9324xy = 0.0676xy cm2 Percentage decrease = 0.0676xy/xy × 100 = 6.76% Hence, option e.
Usually many field crops are propagated by seeds ,Which of the following crops is propagated vegetatively?
Colour of Bougainvillea is due to:
The genetic cause(s) of heterosis include:
Embryo transfer technology was initiated by:
Arrange these soil horizons from top to bottom.
(A) A1
(B) A2
(C) A3
(D) A0
(E) A00
Choose the correct answer from the options given below:
The first Indian Agricultural University was established in:
The groundwater table is measured by:
Glyoxylate cycle occurs in
Industrial relations consists of the relations between .....................?
The embryos of seeds contain enzymes responsible for aiding germination. During germination detection test, these enzymes gives a brilliant red stain up...
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