Latest exam Aptitude Question SOLUTION: A plane left half an hour later than the scheduled time and in order to reach its destination 1500 kilometers away in time, it had to increase its speed by 33.33 percent over its u

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(#M40157124) EXAM Category question Keep an EYE

A plane left half an hour later than the scheduled time and in order to reach its destination 1500 kilometers away in time, it had to increase its speed by 33.33 percent over its usual speed. Find its increased speed.

Asked In exam Sniper (7 years ago)

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Devendra Marghade  (7 years ago)

1000 km/hr

Given distance=1500 km, Let usual speed=x km/hr, then increased speed=33.33% more than the usual=x*(100+33.33)/100=1.3333x= 4x/3
As per the given condition, the distance of 1500 km is covered in 1/2 hour less time with the increased speed, so 1500/(4x/3) = (1500/x) - (1/2)
=> 4500/4x = (3000-x)/2x
=> 4500 = 6000 - 2x
=> x= 1500/2= 750
So increased speed= 4x/3= 4*750/3=1000 km/hr

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