Question
Two cars, A and B, are traveling in the same direction
on a highway. The ratio of their speeds is 3:4. If both cars increase their speeds by 15 km/h, the ratio of their speeds becomes 7:9. What is the original speed of the faster car (Car B)?Solution
Let the original speeds of Car A and Car B be 3x and 4x, respectively. After increasing speeds: Car A's new speed = 3x + 15 Car B's new speed = 4x + 15 New ratio = (3x + 15) : (4x + 15) = 7 : 9 Cross-multiplying: 9(3x + 15) = 7(4x + 15) 27x + 135 = 28x + 105 135 - 105 = 28x - 27x 30 = x Therefore, the original speed of Car B (the faster car) is 4x = 4 * 30 = 120 km/h Ans. a
There are two methodologies for the implementation of Six Sigma. Out of which one is DMAIC. Which of the following is not the correct expansion of the l...
Which of the following best describes the position of an investor who is under an obligation to buy the underlying asset in a futures position?
If an individual is unable to pay back the overdraft taken by him, which of the following risk is the bank facing?
What is the primary regulatory body responsible for overseeing financial institutions in Hong Kong?
The rate of interest equalization for Manufacturers and Merchant Exporters under the interest Equalization Scheme for Pre and Post Shipment Rupee Export...
Which of the following principle of HRD, the top management defining the distribution of authorities and responsibilities to the subordinates so that a ...
Which of the following statements correctly describes the requirements for filing an information memorandum under the shelf prospectus regulations?
Which of the following is the governing body for regulating and overseeing SARFAESI Act implementation?
In personal development, how does ethics contribute to decision-making?
Who chaired the committee to examine the aspects of the digital public infrastructure for the Digital Payments Intelligence Platform?
