if a boy runs at the rate of 10 km per hrs then how long will he take to cover a distance of 450 m
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Answered by
7
distance = 450m
speed = 10km/hr = 10000/hr
[ time = distance / speed. ]
.=>450/ 10000= 0.045 ×60= 2.7 minutes
speed = 10km/hr = 10000/hr
[ time = distance / speed. ]
.=>450/ 10000= 0.045 ×60= 2.7 minutes
Queenbeach:
plz explain how did you do it
just by converting into metre
taking their ratio
thank u
and multipling by 60
please mark as braunliest
Answered by
4
Speed of boy = 10 km / hours
Distance he had to cover = 450 m
speed of boy in m/s = 10×5/18
= 50/18m/s
Time taken to cover 450m = 450×50/18
=> 22500/18
=> 1250
hence, boy should cover 1250 s .
Distance he had to cover = 450 m
speed of boy in m/s = 10×5/18
= 50/18m/s
Time taken to cover 450m = 450×50/18
=> 22500/18
=> 1250
hence, boy should cover 1250 s .
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