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In a flight of 600 km, an aircraft was slowed down due to bad weather. Its average speed for the trip was reduced by 200 km/hr and the time of flight increased by 30 minutes. The duration of the flight is:

(a) 1 hour (b) 2 hours (c) 3 hours (d) 4 hours

Read Solution (Total 3)

let time=t
let speed =s
eq1: s*t=600
eq2: (s-200)(t+0.5)=600
solve to get ans=1hr
14 years agoHelpfull: Yes(4) No(0)

1
14 years agoHelpfull: Yes(0) No(0)
let time=t
let speed =s
eq1: s*t=600
eq2: (s-200)(t+30/60)=600
eliminate s to get "t" as 1 hr
14 years agoHelpfull: Yes(0) No(0)

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