Question
A boat travels downstream at a speed of 25 km/h and the
stream's current adds an additional 3 km/h to its speed. How long will it take for the boat to travel 50 km downstream and then return 57 km upstream?Solution
Upstream speed of the boat = (25 - 6) = 19 km/h [Upstream speed = Downstream speed - 2 X speed of the stream] Total time taken by the boat to cover the required distance = (50/25) + (57/19) = 2 + 3 = 5 hours
Consider the following statements:
1. Tree of Liberty was planted by Tipu Sultan at Srirangapatnam
2. Jacobin Club of Mysore w...
According to 2011 census, what is the annual exponential growth rate in India?
The table below shows the differences between the structure and function of plants and animals.
Which option shows the INCORRECT statement?
<...What is the correct order of increasing atomic radii for the elements nitrogen (N), oxygen (O), fluorine (F), and carbon (C)?
Find the ODD one out from the given options.
Who among the following was not a member of Navratnas of Akbar?
Sagar Samrat' is the name of
Combustion of a candle is a
A 200 kg mixture of gold and silver contains 40% gold. Find the amount of silver that must be added to the mixture so that gold becomes 1/7th of the rem...
Relevant for Exams:
