Question
A boat can travel 45 km downstream in 50 min. The ratio
of the speed of the boat in still water to the speed of the stream is 5: 4. How much time will the boat take to cover 22 km upstream?Solution
Speed of downstream = D/T = 45 × (60/50) = 54 km/hr The ratio of the speed of the boat in still water to the speed of the stream = 5: 4 (5x, 4x) => 9x = 54 => x = 6 Speed of upstream = 5x – 4x = x = 6 km/hr Distance = 22 km Time = D/S = 22/6 = 3(2/3) hr = 3 hour 40 min
HCN in sorghum is synthesized in which part of plant?Â
Summer diapause is known as
In which crop was the phenomenon of Heterosis first commercially exploited?
Maize is generally not grown in
Which of the following microbes involve in the nitrification process?
In terms of analytical scope, farm management is primarily concerned with decision-making at the:
One bale of jute is
Which process ensures that seeds are dried slowly to avoid damage and preserve viability?
To convert the hectares into acre by multiplying hectare with………….
Which state is the highest producer of chili and turmeric?
Relevant for Exams:
