Question
A train can cross a pole in 30 seconds. While if the
train increased its speed by 55% then time taken by it to cross 351 metres long platform is 42 seconds. Find the time taken by the train to cross a 130 metre long tunnel.Solution
Let speed of train is ‘x’ m/s So, length of train = 30 × x = 30x metres And, 30x + 351 = 1.55 × x × 42 Or, 35.1x = 351 Or, x = 10 m/s So, length of train = 30 × 10 = 300 metres Desired time = (300 + 130)/10 = 43 seconds
Tuberculosis is a disease of the ______.
Number of chrormosomes pairs are found in a human cell is _____
First king to have the image of Buddha incrisbed on his coin?
Which organism, showing characteristics of both plants and animals, is classified under the kingdom Protista?
What is the powerhouse of the cell.
Which discipline focuses on the study of flowers and flowering plants?
To which kingdom does the amoeba belong?
Which gland functions as the body's thermostat?
Fermentation is aÂ
__________ is an oil yielding plant.
Relevant for Exams:
