Question
 A man can row the boat x km downstream and the same
distance upstream in 12 hours. Also, he can row the boat 5x km downstream in 10 hours. At what time, he can row the x km distance upstream?Solution
Let the downstream speed of the boat be ‘a’km/h According to the question, (5x/a) = 10 Or (x/a) = (10/5) Or (x/a) = 2 = time taken to travel ‘x’ km downstream Let the upstream speed of the boat be ‘b.’ km/h Also, (x/a) + (x/b) = 12 2 + x/b = 12 x / b = 10 hours
What is the projected installed nuclear power capacity of India by 2031-32 as announced by Union Minister Dr. Jitendra Singh?
Which session was held to raise awareness about "dark patterns" in consumer protection?
Who was awarded the Nobel Prize in 1930 for discovering the human ABO blood group system?
Lok Sabha recently passed Central Universities (Amendment)Bill 2022 for conversion of the National Rail and Transportation Institute (NRTI), a Deemed ...
What is the focus of the book "Xi: A Study in Power" by Kerry Brown?
Cashfree Payments has introduced a new platform for payment orchestration that will help Indian businesses manage different payment systems with just on...
By how much did India's trade deficit increase in Q1 FY25 compared to Q1 FY24?
- Where was India’s first wildlife biobank established?
The National Payments Corporation of India International recently signed a Memorandum of Understanding (MoU) with Lyra Network of __________ that will a...
What is the historical comparison period for the current COâ‚‚Â levels, as mentioned by WMO?
Relevant for Exams:
