Question
Time is taken by two trains running in opposite
directions to cross a man standing on the platform in 28 seconds and 16 seconds respectively. It took 24 seconds for the trains to cross each other. What is the ratio of their speeds?Solution
Let the speed one train be x m/s and the speed of the second train be y m/s. Length of the first train = Speed × Time = 28x Length of second train = Speed × Time = 16y So, {(28x + 16y)/(x+y)} = 24 ⇒ 28x + 16y = 24x + 24y ⇒ 4x = 8y Therefore, x:y = 2:1
Sugar when heated beyond their melting point decompose and form a brown mass known as …….       Â
...Which of the following statement is not true with regard to tetra pack carton packages.
Flushing of gas inside the packages is done with which of the following gases?
In the SI unit, the unit of density is
An operation in which continuous gas stream applied that flushes air out from the package prior to sealing is Â
Why are adulterants added to food products?
The repeated washing of fruits and vegetables might remove
During malting, barley and other grains are broken down by:
Match the following:Â
Vegetable which is not blanched before drying:
Relevant for Exams:
