Let the speed of the boat in still water and the speed of the current be ‘x’ km/hr and ‘y’ km/hr, respectively Upstream speed of the boat = (x – y) = 140/7 = 20 km/hr Or, 28 – y = 20 Or, y = 28 – 20 = 8 km/hr Therefore, downstream speed of the boat = 28 + 8 = 36 km/hr Required time taken = 144/36 = 4 hours
The carbon dioxide concentration in the atmosphere is:
Breeder seed is the progeny of
Kisan call centre were launched in
In plant breeding, DNA markers are useful in several ways. Which of the following does not fall under the importance of DNA marker...
An underground stem of potato is known as
Potassium in Muriate of Potash (MOP) is present in the form of
Which of the following countries is the centre of origin of rice?
If the income elasticity of demand is greater than one, the commodity is:
Which one of the following instrument is used to measure wind speed?
Which of the following antioxidant is present in sesame oil?
