Question
The area of a rectangular field is 24% of the area of a
square field with a perimeter of 80 meters. If the rectangular field has a perimeter of 40 meters, determine its length.Solution
ATQ, Length of each side of the square ield = 80/4 = 20 metres Area of square ield = 20 × 20 = 400 m2 Area of rectangular ield = 0.24 × 400 = 96 m2 Let length and breadth of the rectangular ield is ‘l’ metres and ‘b’ metres, respectively. So, 2(l + b) = 40 Or, l + b = 20 So, (l – b)2 = (l + b)2 – 4lb = 400 – 4 × 96 = 16 So, l – b = 4 So, length of the rectangle = (20 + 4)/2 = 12 metres
Shreya Agrawal is associated with which of the following sports?
Which city was awarded the title of “City of Literature” at the UNESCO Creative Cities Network (UCCN) conference in Portugal?
Outward remittances under the Liberalised Remittance Scheme (LRS) of the Reserve Bank of India (RBI) surged ___ per cent in the April-September 2022.
In which state was the country's 'first' toy train to run on CNG inaugurated?
Which Life insurance company has become the first Indian life insurance company to receive the registration to undertake life insurance business in th...
To enhance the bilateral defence cooperation India has signed an MoU with which of the following countries?
What propulsion system powers the Indian Naval ship ‘Arnala’?
Which of the following is the main objective of the Gruha Jyothi free power scheme launched by the Karnataka government in Kalaburagi?
SmartFin, an end-to-end digital supply chain finance (SCF) platform, powered by Veefin Solutions has been launched that will help drive the required o...
How many employable women in India are currently outside the labour force as per WEE Index findings?