Question
There is a rectangular paper, whose length and breadth
are in the ratio 5:2, respectively and it has a perimeter of 70 metres. If a triangular piece with height of 9 metres and base of 14 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 ‘5x’ metres and ‘2x’ metres, respectively Then, perimeter of the paper = 2 × (length + breadth) = 2 × (5x + 2x) = 14 x metres So, 14x = 70 So, x = (70/14) = 5 So, area of the entire paper = length × breadth = (5 × 5) × (2 × 5) = 25 × 10 = 250 m2 Area of the triangular piece = (1/2) × base × height = (1/2) × 9 × 14 = 63 m2 So, area of the remaining paper = 250 – 63 = 187 m2
African marigold is
Why are lysosomes referred to as "suicidal bags"?
“King of Nuts” is called _________
Which plant growth regulator is commercially used in grapes for berry elongation?
The edible part of the member of Lilliaceae family i.e. Asparagus officinalis is
Papaya is a native of _________
A rose is either a woody perennial flowering plant which has over three hundred species and tens of thousands of cultivars. The flower is popularly kn...
King of Pippin is the variety of ......
Which of the following is used as rootstock for sapota?
Priming of seeds before sowing is done to:
Relevant for Exams:
