Question
Speed of a boat in still water is 5times more than the
speed of stream. If boat covers 72 km in downstream in 6 hours, then find the time taken by the boat to cover 88 km in upstream.Solution
Let the speed of stream be ‘x’ km/hr. So, speed of boat in still water = 5 × x = 5x km/hr Downstream speed of boat = 5x + x = 6x km/hr According to question; 6x = 72/6 = 12 Or, x = 2 Upstream speed of the boat = 5x – x = 4x = 4 × 2 = 8 km/hr Required time taken = 88/8 = 11 hours
The United India Patriotic Association was founded by whom?
Which one of the following constituents of the atmosphere causes greatest changes in climate and weather?
The human eyes form the image of an object at its:
Which is the first state in the country to implement blindness control policy aimed at right to site vision?
Select the misspelled word.Â
The word "TRANSTAN" is associated with
Which of the following districts has population growth rate less than 10 per cent, as per census 2011?
In which of the following city of Rajasthan, 'Rammats' are performed during Holi ?
In which language is ‘Eklingamahatmya’ written ?
In which year Swami Vivekananda established the Ramakrishna Mission at Belur?
Relevant for Exams:
