Question
Ricky can go on a motor boat with a speed of 15 km/hour
in still water to a certain upstream point and come back to the starting point in a river which flows at a speed of 5km/hour. Find the average speed of motor boat for total journey?Solution
Let, the speed of boat be b km/hour and speed of current be s km/hour Average speed = 2xy/(x+y) (here, x is speed of downstream and y is speed of upstream) = (2 (b+s)(b-s))/((b+s+b-s)) = (b2-s2)/b = (225-25)/15 = `13 1/3` km/hour
FSSAI has incorporated third party audit for FBO’s. This will help in the following EXCEPT:
Under Micro-Economics study of?
The famous gene for gene was first established in 1946 in
Which member of honey bee colony produces royal jelly?Â
A _______mutation originates during meiosis while a _______ mutation originates during mitosis.
Which of the following is not the sub-function of buying?
Major Characteristic symptom of stem borer in rice……
Which of the following is an Adulterant for Coffee powder?
Which crop protection strategy helps in avoiding continuous cropping or monoculture and is effective in controlling root diseases by varying the planted...
 Which nutrient deficiency is primarily responsible for the yellowing of tea leaves?
