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
The goods those supply is less than demand & the goods those supply is greater than demand are called
Which method involves removing suspended foreign particles from milk through a straining process?
For newly born chicks for how many hours they should not be fed with anything?
Which parameter describes the soluble salts content in irrigation water and is measured in ds/m?
Which legume crop is best suited as a summer catch crop in northern India after harvest of wheat to utilize residual moisture?
Which pest of sugarcane is characterized by the symptom of internodes becoming constricted and shortened with multiple boreholes and frass in the nodal ...
Which action helps in minimizing damage caused by fruit-sucking moths to citrus fruits?
Seed certification in India is regulated by:
The genetic purity of the seed is tested by:
Which of the following rice cultivation methods is most water-use efficient and being increasingly adopted to address water scarcity?
Relevant for Exams:
