Question
'Arjuna' and 'Bishnu' began
running in opposite directions on a circular track of 1200 metres at the same time. If 'Arjuna', who is twice as fast as 'Bishnu', is running clockwise, what is the shortest distance between their starting point and the point where they first meet?Solution
ATQ, Let speed of 'Arjun' and 'Bishu' be '2a' m/s and 'a' m/s, respectively And, let they meet after 't' seconds. So, 2a × t + a × t = 1200 Or, t = (1200/3x) = (400/a) Required distance = distance travelled by 'Bishnu' in 't' seconds = (400/a) × a = 400 metres Alternate solution Ratio of speeds of 'Arjuna' and 'Bishnu' = 2:1 Since, time is constant. So, ratio of distance travelled by 'Arjuna' and 'Bishnu' = 2:1 So, required distance = 1200 × (1/3) = 400 metres
Objective of pre-cooling isÂ
Which pathogen is responsible for charcoal rot of soybean?
Development of embryo from antipodal cell is known as:
Which one the following is responsible for Rice tungro virus transmission?
Who did work on the recurrence of wheat rusts in India?
Which of the following is a sedge?Â
Which element constitutes the highest percentage in the Earth’s crust?
Primary pollutants are pollutants that are emitted directly from a source, such as smokestacks of power plants and manufacturing facilities. What are se...
The core component that allows an expert system in extension to function like a human expert is:
Which one of the following varieties is hybrid in rice crop?
Relevant for Exams:
