A car takes 30 minutes to cover a distance of 20 km. Calculate its speed in km/h and
m/s.
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Answer:
km/hr= 40, m/sec= 11 1/9
Step-by-step explanation:
Time=30 min
Distance=20 km
Speed=x
speed= distance/time
time= 30min = 30/60
S= D/T
x= 20÷ 30/60
x= 20 × 60/30
x= 40 km/hr
40 km/hr × 5/18 = m/sec
= 20× 5/9 = m/sec
= 100/9 = m/sec
= 11 1/9 m/sec
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