Question

in 8 minutes a boy runs 800 metres what is his speed in kilometre per hour

Answer 1

HEY MATE!

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HERE IS YOUR ANSWER:

distance covered =800m

=800/1000km=0.8km

time taken to cover 0.8km=8minutes

=8/60hr=2/15hr

now, speed =distance/time=0.8÷2/15=0.8×15/2=0.4×15=6km/hr

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HOPE IT HELPED ^_^

Answer 2

1km =1000m so, 800m =0.8km
1hr=60 min so, 8min=8/60hr
then speed =distance÷time
=0.8km ÷ 8/60ht
=(8/10×60/8) km/hr
= 6km/hr answer