A person travels equal distances with speed of 3 km/hr, 4 km/hr and 5 km/hr and takes a total of 47 minutes. find the total distance
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Answered by
99
let the distance be =x km
therefore total distance covered =3x……………(1)
distance travelled /speed =time
therefore, x/3+x/4+x/5=47/60
20x+15x+12x/60=47/60
47x=47
x=1
put x=1 in equation 1
therefore distant =3km/h.
therefore total distance covered =3x……………(1)
distance travelled /speed =time
therefore, x/3+x/4+x/5=47/60
20x+15x+12x/60=47/60
47x=47
x=1
put x=1 in equation 1
therefore distant =3km/h.
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