Question
There is a rectangular paper, whose length and breadth
are in the ratio 6:5, respectively and it has a perimeter of 44 metres. If a triangular piece with height of 9 metres and base of 16 metres is cut out from the given paper then find the area (in m2) of the remaining paper.Solution
Let the length and breadth of the rectangular be ‘6x’ metres and ‘5x’ metres, respectively Then, perimeter of the paper = 2 × (length + breadth) = 2 × (6x + 5x) = 22 x metres So, 22x = 44 So, x = (44/22) = 2 So, area of the entire paper = length × breadth = (6 × 2) × (5 × 2) = 12 × 10 = 120 m2 Area of the triangular piece = (1/2) × base × height = (1/2) × 9 × 16 = 72 m2 So, area of the remaining paper = 120 – 72 = 48 m2
Lichens, the pioneer organisms that initiate ecological succession are actually a symbiotic association of
Which one of the following is variety of triticale
‘The law of limiting factors’ was proposed by
In rust cycle, wheat is infected by which of the following spores?
Winter wheat is grown in
Movement of leaves of sensitive plant, Mimosa pudica are due to
Damping off and leaf blights are very effectively checked by
Seed plot technique of potato is used to produce
Breeder is having tag color of
Application developed by Indian institute of wheat and barley research for pest management in wheat crop is
