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a plane flies a distance 1/4 th of the total distance with speed v and remaining distance with speed v1 if the average speed of the plane over the journey is 5v/4 then v1 |
Answer» <html><body><p>tion:<a href="https://interviewquestions.tuteehub.com/tag/let-11597" style="font-weight:bold;" target="_blank" title="Click to know more about LET">LET</a> Total <a href="https://interviewquestions.tuteehub.com/tag/distance-116" style="font-weight:bold;" target="_blank" title="Click to know more about DISTANCE">DISTANCE</a>= <a href="https://interviewquestions.tuteehub.com/tag/dtime-2045145" style="font-weight:bold;" target="_blank" title="Click to know more about DTIME">DTIME</a> <a href="https://interviewquestions.tuteehub.com/tag/taken-659096" style="font-weight:bold;" target="_blank" title="Click to know more about TAKEN">TAKEN</a> for 1/4th distance= D/4/v =t1time taken for remaining distance = 3D/4/v1=t2average <a href="https://interviewquestions.tuteehub.com/tag/speed-1221896" style="font-weight:bold;" target="_blank" title="Click to know more about SPEED">SPEED</a> = D/(t1+t2)=5v/45v/4= D/(D/4v+3D/4v1)= 1/(1/4v+3/4v1)(1/4v+3/4v1)* 5v=45/4+15v/(4v1) = 45+15v/v1=16v/v1= 11/15v1= 15/11v</p></body></html> | |