Question
If a river is flowing at a rate of 6 km/hr and a boat's
speed in still water is 100% higher than the river's speed, and the boat travels 'd' kilometers downstream in 9 hours, what is the amount of time (in hours) required for the boat to cover (d+24) km upstream?Solution
Speed of a boat in still water = (200/100) × 6 = 12 km/hr According to the question, => d/(12 + 6) = 9 => d = 162 Required time = (162 + 24)/(12 – 6) = 31 hrs
The seventh Asian men’s Champions Trophy hockey tournament will be held at the _______from August 3 to 12 and will be the first time the tournament wi...
What new feature did RBI introduce on its Retail Direct platform in August 2025 to allow small periodic investments in Treasury Bills?
India has become a member of the Battery Energy Storage Systems (BESS) Consortium and due to this collaborative effort, it stands among the pioneering n...
Who was sworn in as the 52nd Chief Justice of India in 2025?
What does the Gelephu Smartcity Project in Bhutan aim to connect through its international city along the Assam border?
What is the number of satellites planned in India’s first commercial Earth Observation satellite constellation?
Which Indian government body oversees the country's first hand transplantation registry?
Who was named the Leading Women’s Cricketer in the World in the 2025 Wisden Almanack?
What was the trigger for India’s tri-service Operation Sindoor?
On which date will the Indian Air Force officially retire its MiG-21 fighter jets?
Relevant for Exams:
