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Let the speed of stream be ‘x’ km/hr. So, speed of boat in still water = 4 × x = 4x km/hr Downstream speed of boat = 4x + x = 5x km/hr According to question; 5x = 135/9 = 15 Or, x = 3 Upstream speed of the boat = 4x – x = 3x = 3 × 3 = 9 km/hr Required time taken = 108/9 = 12 hours
The four principles of organic farming do not include
Who is responsible for implementing NPOP in India?
Which of the following not belong to Post harvest handling of seed crop?
Which of the following components of a Farm Pond is useful for letting out the excess water from the pond?
Match List I with List II