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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
Read Solution (Total 7)
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- total distance of 240*5 = 1200 kms can be covered in 1 hr st a speed of 1200 kmph only.
none of given options. - 13 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 - 13 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
- 10 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) - 7 years agoHelpfull: Yes(1) No(0)
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