Question
Amphibia are known for living in both aquatic and
terrestrial environments during their life cycle. Where do the alimentary canal, urinary tract, and reproductive tract open in amphibians?Solution
In amphibians, these tracts open into a common chamber called the cloaca.
If Boat goes 80 km upstream in 4 hours and 60 km downstream in 2 hours, then the speed of the boat in still water is
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A motor boat covers a certain distance downstream in a river in 5 hours. It covers the same distance upstream in 5 hours and 30 minutes. If the speed of...
A boat running downstream covers a distance of 36 km in 6 hrs and covering the same distance upstream in 9 hrs. What is the speed of a boat in still water?
The speed of boat 'X' in upstream is 18 km/hr and speed of boat 'Y' in downstream is 30 km/hr. If the difference between speeds of boat 'X' and 'Y' in s...
