Let the speed of boat = x and the speed of the stream = y 80/(x - y) = 4 => x - y = 20 60/(x + y) = 2 => x + y = 30 From above x = 25 km/hr
Metallurgy is the process of:
Which chemical compound is commonly known as Pearl Ash?
Which inert gas is most abundantly found in the atmosphere?
How can a mixture of sand and salt be separated?
Which metal remains liquid at room temperature?
Which base is present in soap?
The common name of hydrogen peroxide is:
Which of the following substances is classified as a carbohydrate?
The percentage of nitrogen in urea is :
The product of the equivalent weight and valency of an element equals its ______.
