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
How many international matches did Lalit Upadhyay play before retirement?
The IRDAI introduced new guidelines for which aspect of travel insurance in early 2025?
Which of the following organizations proposed the Digital Payments Intelligence Platform to curb payment frauds?
What is the primary focus of the Memorandum of Understanding (MoU) between NTPC Green Energy Limited (NGEL) and Nayara Energy?
Which of the following statements is correct about the Electoral Bond Scheme?
Who has been appointed as the new head of the Defence Intelligence Agency?
How many countries participated in Miss World 2025?
What is the name of the musical piece by Tyshawn Sorey that won a Pulitzer Prize in 2024?
Which of the following is not among the five pillars of Atmanirbhar Bharat Abhiyan (or Self-reliant India Mission)?
If a Panchayat is dissolved, elections must be held within how many months?
Relevant for Exams:
