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Start learning 50% faster. Sign in nowLet speed of boat in upstream and downstream be ‘7x’ km/h and ‘9x’ km/h respectively. 35/7x + 108/9x = 17 5/x + 12/x = 17 17 = 17x x = 1 Speed of boat in still water = (7x + 9x)/2 = 8x = 8 × 1 = 8 km/h Desired time = 80/8 = 10 hours
Which of the following is/are a root stimulant?
Which of the following devices in a thresher is responsible for separating grains from straw?
In guava, lemon jackfruit which type of cutting is used for propagation ?
In the first stage of the classical production function, the elasticity of production is typically:
The 'Principle of marginalism' can be expressed as:
The Book "Wealth of Nations" written by
What biological control agent is considered most “useful” in managing a wide range of insect pests effectively in agroecosystems?
Which of the following is NOT correctly matched?
In C₃ plants the enzyme involved for formations of Glyceric acid –3- phosphate (PGA) is:
Parturition in pigs is known as