A boat takes 7 hours to cover 245 km upstream and 9 hours to cover 477 km downstream. Find the time taken by the boat to cover 410 km upstream and 495 km downstream if speed of boat in still water is increased by 4 km/h and speed of stream is decreased by 2 km/h.
Upstream speed = 245/7 = 35 km/h Downstream speed = 477/9 = 53 km/h Speed of boat in still water = (35 + 53)/2 = 44 km/h Speed of stream = (53 – 35)/2 = 9 km/h Increased speed of boat in still water = 44 + 4 = 48 km/h Decreased speed of stream = 9 – 2 = 7 km/h Required time taken = 410/(48 – 7) + 495/(48 + 7) = 10 + 9 = 19 hours
Which of the following Ingridents used as Ethylene absorber in active packaging system.
a) Aluminium oxide
b) Calcium oxi...
Nutritional quality ofdietary protein is evaluated on the basis of
Losses of vitamins occurs in blanching due to
a) Leaching
b) Thermal destruction
c) Oxidation
d) Cooling
...Obvious signs is/are oxidation of food
a) Rancidity.
b) Colour changes
c) Loss of odour
d) ...
Biological value of Egg is…
HPP only employed in …operations.
a) Batch
b) Semi-batch
c) Continuous
d) A & C both
...….inhibit absorption of nutrient and known as… ( Anti-nutritional factor & Natural Toxin )
Match the Substances (group-1) with Adulterant (group-2)
Eugenol is an anti-microbial agent present in which of the following Acetate can prevent ropiness and growth of molds but do not interfere with
×
×
|