Latest exam Aptitude Question SOLUTION: a plane flies 900 miles with a tail wind, in 3 hours. It takes the same plane 4 hours to fly the 900 miles when flying against the wind. What is the planes speed in still air?

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(#M40126711) EXAM Numerical Ability question Keep an EYE

a plane flies 900 miles with a tail wind, in 3 hours. It takes the same plane 4 hours to fly the 900 miles when flying against the wind. What is the planes speed in still air?

Asked In exam (9 years ago)

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ramakrishna  (9 years ago)

DISTANCE=SPEED*TIME
SPEED=DISTANCE/TIME
SPEED1 =900/3=300MIL/HR IWITH TAIL WIND
SPEED2=900/4=225MIL/HR AGAINST THE WIND
SPEED IN STILL AIR=(2*S1*S2)/(S1+S2)
=(2*300*225)/(300+225)
=(1800)/7=257.142MIL/HR

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