Question
A train Lucknow Express leaves station A at 4 am and
reaches station B at 7 am. Another train Kanpur Express leaves station B at 6 am and reaches station A at 8:30 am. At what time do the two trains will cross each other?(calculate approximate value)Solution
ATQ, Let distance between station A and B = 'd' km. Speed of Lucknow express = (d/3) Speed of Kanpur express = (2d/5) Relative speed = (d/3) + (2d/5) = (11d/15) Now, trains meet each other after 6am, when train Kanpur express starts its journey. So, distance travelled by Lucknow express from 4am to 6am =[2 × (d/3)]= (2d/3) Remaining distance = [d - (2d/3)] = d/3 Hence time taken to cross each other = [(d/3)/(11d/15)] = (5/11)hrs (5/11) × 60 = 27 min (approx) Thus, both of them cross each other at = 6:27am
Glycolysis occurs in the __________, where one 6-carbon molecule of glucose is oxidised to generate two 3-carbon molecules of pyruvate.Â
Drought is declared by the _________taking into account rainfall situation, crop growth, etc.
The water soluble P (as % Pâ‚‚ Oâ‚… ) in ammonium phosphate (DAP) is
For six molecules of COâ‚‚Â to be fixed how many molecules of ATP are required in Câ‚„Â Cycle?
One honey bee hive has ....................drones?
Which one of the following designs is recommended for experiments with homogeneous experimental units?
Which of the following is a cultural method of weed control?
Albumin part comprises of what percentage in fowl egg by weight?
In furrow irrigation, which factor mainly influences the uniform distribution of water?
Which disease is not associated with apple?
