An aeroplane covers a certain distance at a speed of 240 kmph in 5 hours. To cover the same distance in 1 hours, it must travel at a speed of:

A. 300 kmph B. 360 kmph
C. 600 kmph D. 720 kmph

• total distance of 240*5 = 1200 kms can be covered in 1 hr st a speed of 1200 kmph only.
  
  none of given options.
• 12 years agoHelpfull: Yes(16) No(1)
• distance travelled =240*5=1200km
  Speed shall be 1200kmph to cover the distance in 1 hour
  Option is not correct
• 12 years agoHelpfull: Yes(2) No(1)
• 1200*1=1200kmph
• 12 years agoHelpfull: Yes(1) No(2)
• here speed=distance/time & distance=speed*time
  Given that distance is same.so s1*t1=s2*t2
  240*5=1*s2=> s2=1200kmph
• 10 years agoHelpfull: Yes(1) No(0)
• 240*5=1200km
• 9 years agoHelpfull: Yes(1) No(0)
• 1200 km ph
• 9 years agoHelpfull: Yes(1) No(0)
• Question is wrong..!
  that should be 1*2/3 instead of 1
  SOLUTION:
  Distance = (240 x 5) = 1200 km
  Speed = Distance/Time
  Speed = 1200 / ( 5 / 3) km / hr. [We can write 1 hours as 5/3 hours]
  
  Required speed = 1200 x 3 km/hr = 720 km/hr
  
  (OPTION D)
• 6 years agoHelpfull: Yes(1) No(0)