A traveler walks a certain distance. Had he gone half a
kilometer an hour faster , he would have walked it in 4/5
of the time, and had he gone half a Kilometer an hour
slower, he would have walked 2 ½ hr longer. What is the
distance?
Answer Posted / shyam
let distance=x , time=t & speed=s &v knw x=s*t .... (1)
1st case x=(s+.5)(4t/5) ..... (2)
2nd case x=(s-.5)(t+ 5/2) ..... (3)
(1) divided by (2) v get speed s = 2
similarly (2) divided by (3) v get time t = 15/2
therefore x = s * t = 2 * 15/2 = 15 km
Is This Answer Correct ? | 23 Yes | 5 No |
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Hello!!I have appllied for the post of Jr.Executive(ATC).My educational qualification is B.Tech(IT).I ould like to know if the questions in technical section will be based on IT alone or else also from other subjects also like electrical/electronics/civil/tele communication.I will be grateful for a relevant answer.thank you in advance
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