Let the speed of boat in still water be x km/hr and the distance be y km. Rate downstream = (x + 3) km/hr Rate upstream = (x – 3) km/hr According to the question, y/(x + 3) = 7/2 --- (i) y/(x – 3) = 4 --- (ii) On dividing equation (i) by (ii), (x – 3)/(x + 3) = (7/2)/4 = 7/8 8x – 24 = 7x + 21 x = 21 + 24 = 45 kmph
An agricultural revolution is when farming changes a lot in a short time. These revolutions have led to transformative outcomes in the country's agricul...
A farmer harvested a crop with a total biomass of 800 kg, and the grain yield from the crop was 400 kg. Calculate the harvest index of the crop.
Which one is cole-crop:
Which of the following viral diseases of tomatoes is transmitted by the whitefly, Bemisia tabaci, in a persistent manner?
____ consists of dividing a market into distinct groups of buyers on the basis of needs, characteristics, or behavior who might require separate product...
Which is the first and foremost gelling agent used to impart a gelled texture to foods, mainly fruit based foods?
Water requirement is equal to
The percentage of Phosphorus Pentoxide present in night soil is:
Markets classified on the basis of nature of transactions
To which one of the following common bread wheat (2n = 42) belong:
