Question
The ratio of length to breadth of a rectangle is 8:5.
When the length and breadth of the rectangle is increased by 20% and decreased by 50% respectively, then its perimeter becomes 363 cm. Find the original area (in cm2) of the rectangle.Solution
Let the original length and breadth of the rectangle be 8x cm and 5x cm, respectively According to the question, 2 × {(1.2 × 8x) + (0.5 × 5x)} = 363 Or, 9.6x + 2.5x = 363 Or, x = 363/12.1 = 15 Therefore, original area of the rectangle = 8x × 5x = 40x2 = 9000 cm2
 Insecticides that are absorbed by plants and affect insects feeding on treated plants belong to which mode of action category?
Which of the following fruit is highly drought tolerant?
Which symptom is associated with the Spiny Bollworm (Earias insulana) during the pre-flowering stage?
Highest SNF content is found in which animal milk?
‘Millets’ were among the first crops to be domesticated in India with several evidence of its consumption during the Indus valley civilization. In ...
Match the following meteorological instruments with their uses:
Endosperm is edible part in which of the following fruit   Â
According to latest Final estimates of Foodgrain production 2023-24, Which state is the largest producer of sugarcane in India?
Temperature for homogenisation of milk
The fungi that degrades lignin as well as cellulose from agricultural waste
Relevant for Exams:
