Question
The ratio of the speed of boat ‘A’ in still water,
the speed of boat ‘B’ in still water and the speed of the current is 7:5:2, respectively. If the time taken by boat ‘A’ to travel (7D – 40) km downstream is equal to the time taken by boat ‘B’ to travel (D + 70) km upstream, then find the value of ‘D’.Solution
Let, the speeds of boat ‘A’ and boat ‘B’, in still water and the speed of the current be 7x km/hr, 5x km/hr and 2x km/hr, respectively. According to the question, (7D – 40)/(7x + 2x) = (D + 70)/(5x – 2x) Or, 21D – 120 = 9D + 630 Or, 12D = 750 Or, D = 62.5
Recently Geological Survey of India has for the first time established Lithium inferred resources (G3) of 5.9 million tonnes in which of the following S...
Which prominent Indian leader's birth anniversary coincides with the launch of the Dharti Aaba Janjatiya Gram Utkarsh Abhiyan (DAJGUA)?
Who will be the torchbearer for the Paris 2024 Olympic Torch Relay?
RBI recently launched new service, called UPI 123Pay, for _____________________.
In response to the AI safety challenges, which two countries agreed to jointly develop tests for advanced AI models in 2024?
Why was Vinesh Phogat disqualified from the Paris Olympics women’s 50kg final?
As per the meeting of the Monetary Policy Committee in Dec 2022, CPI Inflation is projected at ____ % in 2022-23.
Who has recently been appointed as the Surveyor General of India?
Which financial services provider launched the advanced ‘Push Provisioning’ platform?              Â
...Which of the following can be identified as the major objectives of NITI Aayog?
1. Fostering cooperative federalism
2. Acting as a platfor...
Relevant for Exams:
